Brethren. Place it, as the Greek, last, before the "Amen." After much rebuke, he bids them farewell with the loving expression of brotherhood as his parting word (note, Galatians 1:6).
Be with your spirit - the spiritual nature, which, I trust, will keep down the flesh (1 Thessalonians 5:23; 2 Timothy 4:22; Philemon 1:25).