2 Peter 2:21

Therefore, it has been better for them not to have known the way of righteousness, than having known it, turn away from the holy commandment delivered to them.

1 John 2:19

They went away from us, but they were not of us. For, if they had been of us, they would have abode with us; but they went away, that they might be made manifest that they were not of us.

Treasury of Scripture Knowledge

Summary

I will set no wicked thing before mine eyes: I hate the work of them that turn aside; it shall not cleave to me.

Bible References

Them

2 Peter 2:21
Therefore, it has been better for them not to have known the way of righteousness, than having known it, turn away from the holy commandment delivered to them.
1 John 2:19
They went away from us, but they were not of us. For, if they had been of us, they would have abode with us; but they went away, that they might be made manifest that they were not of us.