Hebrews 13:21

"Equip" means to prepare for use (cf. 2 Timothy 3:16-17). The same Greek word, katartidzo, describes elsewhere a doctor setting a broken bone, a general preparing his army for battle, and a fisherman mending his net (cf. Matthew 4:21). It was the writer’s concern that his readers be ready to reign with Jesus Christ. This is the purpose for remaining faithful to God throughout the epistle. Part of our full inheritance (full rest, full salvation) is the privilege of reigning with Him (2 Timothy 2:12). To attain this privilege we must continue to press on toward maturity by following Jesus Christ faithfully rather than turning from Him.