Verses with the word railing in the New Testament (3 verses):

1 Peter 3:9
Not rendering evil for evil, or railing for railing: but contrariwise blessing; knowing that ye are thereunto called, that ye should inherit a blessing.

2 Peter 2:11
Whereas angels, which are greater in power and might, bring not railing accusation against them before the Lord.

Jude 1:9
Yet Michael the archangel, when contending with the devil he disputed about the body of Moses, durst not bring against him a railing accusation, but said, The Lord rebuke thee.