Galatians 1:8-9

However, if we [apostles] or even an angel [claiming to be] from heaven were to preach any other "gospel" than the one we have [already] preached to you, let that person be cut off from God's [salvation].

1 John 5:21

Little children [i.e., dear ones], protect yourselves from [worshiping] idols.

Treasury of Scripture Knowledge

Summary

Thou shalt not consent unto him, nor hearken unto him; neither shall thine eye pity him, neither shalt thou spare, neither shalt thou conceal him:

Bible References

Consent

Galatians 1:8
However, if we [apostles] or even an angel [claiming to be] from heaven were to preach any other "gospel" than the one we have [already] preached to you, let that person be cut off from God's [salvation].
1 John 5:21
Little children [i.e., dear ones], protect yourselves from [worshiping] idols.