(Proverbs 2:8 KJV) He keepeth the paths of judgment, and preserveth the way of his saints.
It is important to make a note about whom the “He” is in this verse. The NASB may be more artistic in its style but the KJV is more helpful by putting the word at the beginning of the passage. He is God. If you look back and read from verse 6 you can see that there are a number of things that God is going to be doing for His people. If you read the further context it is clear that the recipients are not just those who are raised in a godly culture but those who follow the God of that culture.
So? We keep running into reminders of the balanced paradox of life. We are to put our shoulder to the wheel and work hard because it makes a difference. While we do that we are to always keep in mind that God is in charge. He is the source of salvation and the dispenser of judgement. So relax and get to work.