What is the relationship between railing and physical abuse?

What is the relationship between railing and physical abuse?

Railing is verbal, therefore it is not physical abuse. Railing, which is verbal abuse, can be as harmful as physical abuse. It may incite a violent response or it may precede physical abuse. The Lord’s teaching in Matthew 5:21, 22 shows the relationship of derogatory language to murder. Railing and murder have the same mother: hatred in the heart. In the Lord’s eyes, they are of the same kind. The degree of punishment differs for each, but they both are alike condemned as deserving hell fire.

D. Oliver