In the name of the Lord Jesus Christ we command you, brothers, to keep away from every brother who is idol and does not live according to the teaching you received from us.  2 Thessalonians 3:6

Do not associate with him, in order that he may feel ashamed. Yet do not regard him as an enemy. Only warn him as a brother. 2 Thessalonians 3:14

May the Lord himself give you peace at all times and in every way. 2 Thessalonians 3:16

Impulsiveness is always a trait of the natural flesh. Watch how the Spirit of God gives us a sense of restraint to impulsiveness. Impulsiveness instantly wants to vindicate. An impulsiveness adult is always a spoiled person. – Oswald Chambers