James 4:14-15: "Yet you do not know what your life will be like tomorrow. You are just a vapor that appears for a little while and then vanishes away. Instead, you ought to say, ‘If the Lord wills, we shall live and also do this or that'" (NASB).
God wants our eyes to be fixed on Him. The world offers many distractions, and we may substitute our obedience for earthly indulgence. The more we do this, the more we learn to settle for less. John Piper, from his book A Hunger for God, notes, "If we don't feel strong desires for the manifestation of the glory of God, it is not because we have drunk deeply and are satisfied. It is because we have nibbled so long at the table of the world. Our soul is stuffed with small things, and there is no room for the great."
Our children listen to us say we want to do God's will, and they watch us to see how it is done. Let your example be that of a deep relationship with Christ that satisfies and compels you to seek His will over your own.
Approach the banquet of God's fullness, and bring your children with you!