1 John 2:10

He who loves his brother, abides in the light, and there is no stumbling block to him.

Revelation 2:14

Nevertheless, I have a few things against you, that you have there, them who hold the doctrine of Balaam, who taught Balak to cast a stumbling block before the children of Israel, to eat things sacrificed to idols, and to commit fornication.

Treasury of Scripture Knowledge

Summary

Let us not therefore judge one another any more: but judge this rather, that no man put a stumblingblock or an occasion to fall in his brother's way.

Bible References

Put

Revelation 2:14
Nevertheless, I have a few things against you, that you have there, them who hold the doctrine of Balaam, who taught Balak to cast a stumbling block before the children of Israel, to eat things sacrificed to idols, and to commit fornication.

Or

1 John 2:10
He who loves his brother, abides in the light, and there is no stumbling block to him.