Teaching my child, who is 7 years old, Psalm 23 and Psalm 91. Someone said that was extreme. I do not think it is, I feeI I should be teaching him even more, I just do not know which passages to start with next?
Proverbs 22:6
ESV - 6 Train up a child in the way he should go; even when he is old he will not depart from it.
For follow-up discussion and general commentary on the topic. Comments are sorted chronologically.
John 3:16-18. First John 5:13. Romans 4:5 and 11:6. John 3:36. John 10:28-29. Ephesians 2:8-9, Romans 6:23. Firs Corinthians 15:3-4.
When my children were growing up we would pray the psalms at night, especially psalm 4 psalm 23 and psalm 91. I never asked that they memorize them but over the course of time they were able to memorize them. So in my opinion, one way of helping them is also by constant repetition.