The words of Agur the son of Jakeh, the oracle.
The man declares to Ithiel, to Ithiel and Ucal: (Proverbs 30:1).

The NetBible provides a possible alternative understanding to the second half of this verse:

The man said, I have wearied myself, O God, I have wearied myself, O God, and am consumed.

Instead of seeing proper names, which seem both strange and obscure to the context, translating the words as words and not as proper names gives a meaning that is consistent with the larger context. In the verses that follow Agur contrasts his absolute ignorance with God's transcendant wisdom and power (cf. Proverbs 30:2-4). This is consistent with the idea that he has wearied himself ("I have wearied myself") in searching out the wisdom of God, only to find himself spent ("am consumed").

The fact is that he cannot find it out by himself. He must rely on what God chooses to reveal to him. God's Word, by which God chooses to reveal Himself, is thus exalted. It is thoroughly proven and reliable. No one should add anything to it, for doing so will only incur judgment and reveal such a person to be in the wrong, even "a liar":

Every word of God is tested;
He is a shield to those who take refuge in Him.
Do not add to His words
Or He will reprove you, and you will be proved a liar (Proverbs 30:5-6).

In keeping with his own admonition, he asks God for two things. First, he asks that he might not be proved a liar: "Keep deception and lies far from me" (Proverbs 30:8). The implication here is that God's Word would provide him protection (cf. Proverbs 30:5) from deception and lies. So he is asking that God's Word might always guide him. 

The second thing Agur asks for is presented as a couplet:

Give me neither poverty nor riches;
Feed me with the food [lit. "bread"] that is my portion (Proverbs 30:8).

This is an unusual request because it begins with a negative. He asks God not to give him poverty and not to give him riches. He explains in the following verse the reason for this. If he was rich, and therefore, full, he might deny God in his self-sufficiency. Yet, if he was poor, he might violate God's Law and steal food in desperation. These explanations reveal that Agur's chief interest is not necessarily some ideal middle ground but rather in what will honor God most. And this is how we must understand his central request, "Feed me with the food that is my portion," or as the NIV translates it, "Give me only my daily bread." It is not a request for God to simply meet his daily needs but for God to meet his needs in such a way that Agur might give the greatest honor to God. 

In expressing his request in this way, Agur reflects Solomon, who made a similar reply when God asked him what he wanted God to do for him. Solomon did not ask for great wealth or victory over his enemies but rather a wise heart to govern His people (cf. 1 Kings 3:9). Now, Solomon did get this wisdom from God and wisely governed the people of God; however, he did not always honor God. I would like to think that Proverbs 30 was collected into the Book of Proverbs by Solomon near the end of his life, along with the Book of Ecclesiastes, and, as he reflected on his missteps, he realized that there was something even greater than governing wisely,namely, trusting and obeying God (cf. Ecclesiastes 12:13-14). Perhaps Agur's words reflect the maturing of Solomon's own heart, so that his chief interest went from the good, namely, being a wise king, to the great, namely, being God's obedient servant. 

Moses understood this, for he wrote, 

"Man does not live on bread alone but on every word that comes from the mouth of the Lord" (Deuteronomy 8:3).

Jesus taught this as well:

So do not worry, saying, ‘What shall we eat?’ or ‘What shall we drink?’ or ‘What shall we wear?’ For the pagans run after all these things, and your heavenly Father knows that you need them. But seek first his kingdom and his righteousness, and all these things will be given to you as well (Matthew 6:31-33).

In fact, in the very sermon that Jesus said these words, He also taught the Lord's prayer, where he repeats Agur's request in Proverbs 30:8,

Give us today our daily bread (Matthew 6:11).

I believe that Jesus meant the same thing that Agur meant in using this expression. He was not encouraging believers to pray for their daily needs. After all, He told them not to worry about such things, that God already knew their need, and that their concern should rather be in seeking God's kingdom and righteousness. Jesus was encouraging believers to have the same attitude that Agur had, seeking from God only that which would most glorify Him. 

Paul expressed this attitude in ths way:

I eagerly expect and hope that I will in no way be ashamed, but will have sufficient courage so that now as always Christ will be exalted in my body, whether by life or by death. For to me, to live is Christ and to die is gain (Philippians 1:20-21).

Paul's concern was not life or death but Christ being exalted. Agur's interest was not riches or poverty but God being honored. When Christ taught us to pray for our daily bread, He too was not modeling a way to get our needs met but rather an attitude whereby our chief interest is what would most glorify God. If we can most glorify God by being hungry, then we are asking God to make us hunger. Do you remember that this was what God did in the wilderness of Sinai?

He humbled you, causing you to hunger and then feeding you with manna, which neither you nor your ancestors had known, to teach you that man does not live on bread alone but on every word that comes from the mouth of the Lord (Deuteronomy 8:3).

Even Paul knew hunger. There were days when he did not have his daily portion:

I know what it is to be in need, and I know what it is to have plenty. I have learned the secret of being content in any and every situation, whether well fed or hungry, whether living in plenty or in want. I can do all this through him who gives me strength (Philippians 4:12).

The point is not getting our daily needs met but honoring God. When Paul declared, "I can do all things through him who gives me strength," it was the strength to be content in any and every circumstance, whether rich or poor, wether hungry or well-fed. 

Friends, let us learn this lesson from Agur, which is echoed by Moses and Paul and our Lord Jesus. Let us not be preoccupied with our own lives. Let us not pursue riches. Let us not be overanxious about poverty. Let us not even allow our daily needs to be our chief concern. Instead, let us learn to focus on the Lord, on giving Him the greatest glory by trusting and obeying His Word in everything.

Who can find a virtuous and capable wife? She is more precious than rubies. (Proverbs 31:10 NLT)

The kind of woman described here seems more ideal than real, for the very question is rhetorical. Such a woman does not exist. But if she did, she would be invaluable to her husband, to her family, and even to society at large. Why then does Solomon continue to describe her? 

Remember, the Proverbs was primarily written for King Solomon's  son, who would reign in his place. That is why there are so many references to "my son" (27 times). Even in chapter 31, the counsel is given to "my son," which is repeated here three times for emphasis. This entire chapter is primarily advice given from a king (i.e. "king Lemuel") to his son, who would be king, and it is advice the king himself received from his mother (Proverbs 31:1).

The passage presents a contrast. In verses 3-9 Lemuel was warned against loose women and strong drink. The former would sap his strength and the latter his good sense. Lemuel is reminded that he is the king and is responsible to dispense justice to the poor and helpless. 

But in contrast to loose women and strong drink, Lemuel is encouraged to find a virtuous and capable wife, someone who will manage all the affairs of the home, even as he takes responsibility for the kingdom. Just like a mother, she is concerned with finding a good wife for her son. But she does not want him to take forever trying to find the perfect wife, so she wisely dismisses this right up front: "Who can find a virtuous and capable wife?" Expected answer? No one. "But here are the kinds of things you should look for in your wife...." In other words, even if your wife does not have all of these qualities, even if she has most or some of these, all is well.

What follows is a list of qualities that seem to embrace the responsibilities of both the man and the woman in any typical household. If we make such a generalization, there is hardly anything for a typical man to do, except to receive praise from his friends, for he has found a trophy wife, not necessary a tophy in beauty but an ideal worker bee. This is not how we should view this passage. Thus, it would be a mistake for us to generalize.

As I described from the context, I sense this is written for a king, whose responsibilties are great and involve managing the larger household of the kingdom, where he must ensure justice for the poor and helpless. This is also why he is daily and always sitting at the city gates with other civic leaders (Proverbs 31:23). If he can entrust all the affairs of his household to his wife, then he can manage the affairs of state with full confidence and attention. This is the proper context to view the motherly advice given here. It is not for just any man and does not concern just any woman. It concerns the qualities of a king and his queen.

Now, there are, of course, certainly qualities that we can appreciate and try to emulate, even if the demands of running a kingdom do not fall within the purview of our own simpler lives. Let us make any application with a right perspective of the context in which these words are given.  

 We should all be asking God for the same..whether for better or for worse, richer or poorer, in sickness or in health, put us the whatever situation that will give God the most glory. With the grace of God, we can prevail over our circumstances!