And ye shall teach them your children, speaking of them when thou sittest in thine house, and when thou walkest by the way, when thou liest down, and when thou risest up. – Deuteronomy 11:19

The obedience of faith creates a form of life which may be safely copied. As parents, we wish so to live that our children may copy us to their lasting profit. Teachers should aspire to be what they would have their classes to be. If you go to school to the obedience of faith, you will be good teachers. Children usually exaggerate their models; but there will be no fear of their going too far in faith, or in obedience to the Lord. I like to hear a man say, when his father has gone, “My dear father was a man that feared God, and I would fain follow him. When I was a boy, I thought him rather stiff and Puritanical; but now I see he had a good reason for it all. I feel much the same myself and would do nothing of which God would not approve.” The bringing up of families is a very great matter. This is too much neglected nowadays; and yet it is the most profitable of all holy service, and the hope of the future. Great men, in the best sense, are bred in holy households. God-fearing example at home is the most fruitful of religious agencies…I would to God that we had more men to-day who would maintain truth at all hazards. Alas! the gutta-percha backbone is common among Dissenters, and they take to politics, and the new philosophy, and therefore we are losing the force of our testimony, and are, I fear, decreasing in numbers too. The Lord give us back those whose examples can be safely copied in all things, even though they be decried as being “rigid” or “too precise”! We serve a jealous God, and a holy Saviour; wherefore let us mind that we do not grieve His Spirit and cause Him to withdraw from us. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/2195.cfm