1-timothy 5:18

The Scripture saith, Thou shalt not muzzle the ox - This is a manifest proof that by τιμη, honor, in the preceding verse, the apostle means salary or wages: "Let the elders that rule well be accounted worthy of double honor," a larger salary than any of the official widows mentioned before, for "the laborer is worthy of his hire." The maintenance of every man in the Church should be in proportion to his own labor, and the necessities of his family. He that does no work should have no wages. In the Church of Christ there never can be a sinecure. They who minister at the altar should live by the altar; the ox that treadeth out the corn should not be muzzled; the laborer is worthy of his hire: but the altar should not support him who does not minister at it; if the ox won't tread out the corn, let him go to the common or be muzzled; if the man will not labor, let him have no hire.

For the Scripture saith - This is adduced as a reason why a church should show all due respect and care for its ministers. The reason is, that as God took care to make provision for the laboring ox, much more should due attention be paid to those who labor for the welfare of the church.

Thou shalt not muzzle the ox - see this passage explained, and its bearing on such an argument shown, in the notes on 1 Corinthians 9:8-10.

And, The labourer is worthy of his reward - This expression is found substantially in Matthew 10:10, and Luke 10:7. It does not occur in so many words in the Old Testament, and yet the apostle adduces it evidently as a quotation from the Scriptures, and as authority in the case. It would seem probable, therefore, that he had seen the Gospel by Matthew or by Luke, and that he quoted this as a part of Scripture, and regarded the Book from which he made the quotation as of the same authority as the Old Testament. If so, then this may be regarded as an attestation of the apostle to the inspiration of the "Gospel" in which it was found.

5:18 >Deut 25:45:19Against an elder - Or presbyter. Do not even receive an accusation, unless by two or three witnesses - By the Mosaic law, a private person might be cited (though not condemned) on the testimony of one witness; but St. Paul forbids an elder to be even cited on such evidence, his reputation being of more importance than that of others.5:20Those - Elders. That sin - Scandalously, and are duly convicted. Rebuke before all - The church.5:21I charge thee before God - Referring to the last judgment, in which we shall stand before God and Christ, with his elect, that is, holy, angels, who are the witnesses of our conversation. The apostle looks through his own labours, and even through time itself, and seems to stand as one already in eternity. That thou observe these things without prejudging - Passing no sentence till the cause is fully heard.Or partiality - For or against any one.5:22Lay hands suddenly on no man - That is, appoint no man to church offices without full trial and examination; else thou wilt be accessary to, and accountable for, his misbehaviour in his office.Keep thy self pure - From the blood of all men.5:24Some men's sins are manifest beforehand - Before any strict inquiry be made. Going before to judgment - So that you may immediately judge them unworthy of any spiritual office. And some they - Their sins.Follow after - More covertly.5:25They that are otherwise - Not so manifest.Cannot be long hid - From thy knowledge. On this account, also, be not hasty in laying on of hands.