Eph 6:1-3, 1 Children, obey your parents in the Lord, for this is right. 2 “Honor your father and mother” (this is the first commandment with a promise), 3 “that it may go well with you and that you may live long in the land.”
The first duty of children is obedience to parents. That is to comply with commands put in place, submit to authority of the parents as in the Lord. They must be taught to obey because it is right, and their conscience bears witness to the rightness.
Honoring the parents is the first and only commandment with a promise, but the promise is not a guarantee, but overall. It is an obligation that rests on the very nature of God’s truth, and cannot change with the spirit of the age.
Obedient children are often rewarded with outward prosperity. There are instances of such children who meet with much affliction in this life: but ordinarily obedience opens doors to rewards.
As honoring parents is the first duty of the children, parents must instill the biblical values and discipline they need to keep them on the narrow path. To circumvent biblical principles of raising children is to set them on the path of curses rather than blessings.