That the generation to come might know them, even the children which should be born; who should arise and declare them to their children.
Psalm 78:6 (KJV)
From the Old Testament to the New, we have many examples of the obligation and responsibility of parents, especially fathers, to their children regarding the teaching of the word of God. The Bible gives us so many reasons why we should always teach the word to our children. Not only to grow in the knowledge of God, but also to walk in obedience and to fear Him.
God places great importance on parents spending time teaching His word to their children. Deuteronomy 6 gives us the benefits that we and our children will derive from it; Verse 2: "so that you, your children and their children after them may fear the Lord your God as long as you live by keeping all His decrees and commands that I give you, and so that you may enjoy long life." Verse 6: "These commandments that I give you today are to be on your hearts."
Paul reminded Timothy (Tim 1:4-5) of the sincere faith he inherited from his great mother and his mother. We can understand that they had taught him to keep and obey the word since childhood. This is what prepared him to be a spiritual leader for the church in his day. I encourage you not only to study the Bible with your children, but also to be a living example of what you teach them. Thus, from generation to generation, your little children will inherit your example and your attachment to the word of God.