John Mark
Mark 16:20BSB·traditional attribution

And they went out and preached everywhere, and the Lord worked through them, confirming His word by the signs that accompanied it.

John Calvin Reformed @genevareformer

Mark 16:19. And sat down at the right hand of God. In other passages I have explained what is meant by this expression, namely, that Christ was raised on high, that he might be exalted above angels and all creatures; that by his agency the Father might govern the world, and, in short, that before him every knee might bow, (Philippians 2:10.) It is the...

Matthew Henry Presbyterian @wholebiblehenry

Here is, 1. Christ welcomed into the upper world (Mar 16:19): After the Lord had spoken what he had to say to his disciples, he went up into heaven, in a cloud; which we have a particular account of (Act 1:9), and he had not only an admission, but an abundant entrance, into his kingdom there; he was received up, received in state, with loud...

Commenting on Mark 16:19-20

Albert Barnes Presbyterian @notesbybarnes

Verse 20. They went forth. The apostles. Every where. In all parts of the world. See the account in the Acts and the Epistles. The Lord working with them. By miracles; by removing obstacles; by supporting them, and by giving the gospel success, and making it effectual to saving men. Confirming the word. Showing it to be the word of God, or a revelation from heaven. With signs following.