It were better for him that a millstone were hanged about his neck, and he cast into the sea, than that he should offend one of these little ones.
Note 1 at Lu 17:2: God takes the persecution of His children personally. In Ac 9:4 when Jesus appeared to Saul on the road to Damascus and spoke to him about his persecution of the saints, Jesus said, "Saul, Saul, why persecutest thou me?" Judgment against those who persecute God's children will not always come in time to prevent their harm. However, as this warning makes very clear, God will avenge His own (Ro 12:19).