In the O.T. there are five Hebrew words so translated, signifying 'to be right, proper, fit,' which do not call for remark. In the N.T. are
1. δεῖ, often translated 'must' and 'ought.' It 'behoved' the father to make merry when the prodigal son returned. Luke 15:32 . Sinners received the punishment that was 'fit.' Romans 1:27 .
2. ἱκανόω. The Christian is made 'fit' to share the portion of the saints in light. Colossians 1:12 .
3. εὔχρηστος. By the Christian separating himself from the vessels to dishonour, he becomes a vessel to honour, sanctified, 'serviceable' to the Master. 2 Timothy 2:21 .