"Parents generally put too much confidence in their children; for often when the parents are confiding in them, they are in concealed iniquity. Parents, watch your children with a jealous care. Exhort, reprove, counsel them when you rise up and when you sit down, when you go out and when you come in, line upon line, precept upon precept, here a little, and there a little. Subdue your children when they are young. With many parents this is sadly neglected. They do not take as firm and decided a stand as they should in regard to their children. They suffer them to be like the world, to love dress, and associate with those who hate the truth and whose influence is poisonous. By so doing they encourage in their children a worldly disposition. 1T 156.1"
"And thou shalt teach them diligently unto thy children, and shalt talk of them when thou sittest in thine house, and when thou walkest by the way, and when thou liest down, and when thou risest up."
The EGW passage directly quotes and applies the principle of Deuteronomy 6:7 regarding consistent teaching of children.
"For precept must be upon precept, precept upon precept; line upon line, line upon line; here a little, and there a little:"
The EGW passage directly quotes Isaiah 28:10.
"Train up a child in the way he should go: and when he is old, he will not depart from it."
The EGW passage directly expands on the principle of training up a child, providing specific instructions and warnings about parental involvement. The reference to 'line upon line, precept upon precept' is also a clear echo of Isaiah 28:10, which reinforces the idea of consistent, incremental teaching.
"the father, but oftener with the mother. The fond mother pets and indulges her children. The father's labor calls him from home often, and from the society of his children. The mother's influence tells. Her example does much toward forming the character of the children. 1T 156.2"
"The rod and reproof give wisdom: but a child left to himself bringeth his mother to shame."
The EGW passage discusses the mother's influence and the dangers of indulgence, which aligns with the proverb's warning about a child left to himself bringing shame to his mother. While not a direct quote, the thematic connection is clear.