These verses describe a generation so wicked that they curse their own parents; and so prideful that they do not see their own wickedness.
Verses 11-14 - Verse 1 describes Agur's words as prophecy. I believe it may not only have spoken of an evil generation in Agur's time, but also point to the generation that will exist before the second coming of the Lord Jesus. The Apostle Paul also describes this generation in 2 Timothy 3:1-5: "This know also, that in the last days perilous times shall come. For men shall be lovers of their own selves, covetous, boasters, proud, blasphemers, disobedient to parents, unthankful, unholy, Without natural affection, trucebreakers, false accusers, incontinent, fierce, despisers of those that are good, Traitors, heady, highminded, lovers of pleasures more than lovers of God; Having a form of godliness, but denying the power thereof: from such turn away."
Agur's words describe a generation that curses their parents; Paul states that in the last days people will be disobedient to their parents. Agur describes a generation that is prideful and sinless in their own eyes; Paul speaks of a people being haughty and having only a form of godliness. Agur speaks about a generation that takes advantage of the poor, while James 5:1-5 speaks of men who heap up riches for the last days at the expense of those who labor for them, by paying them inadequate wages.
"Wherefore as the Holy Ghost saith, Today if ye will hear his voice, Harden not your hearts, as in the provocation, in the day of temptation in the wilderness: When your fathers tempted me, proved me, and saw my works forty years. Wherefore I was grieved with that generation, and said, They do alway err in their heart; and they have not known my ways. So I sware in my wrath, They shall not enter into my rest" (Hebrews 3:7-11).