Sermon on the Mount.

if his son asks him for bread, will offer him a stone?

Or, if he asks him for a fish, will offer him a snake?

If you then, who are nonetheless evil, can still give good gifts to your children, how much more will your Father in heaven give good things to those who ask him.

Everything, then, that you want people to do to you, do also to them; that is the Law and the Prophets. Luke 6:31.

Enter through the narrow gate; for the gate is wide, and the way is broad, that leads to damnation, and there are many who walk upon it. Luke 13:24.

And the gate is narrow, and the way is small, which leads to life, and there are few who find it.

Watch out for the false prophets, who come to you in sheep's clothing