The Apostle Paul
Colossians 3:7BSB·traditional attribution

When you lived among them, you also used to walk in these ways.

John Calvin Reformed @genevareformer

7. In which ye walked. Erasmus mistakingly refers this to men, rendering it, “inter quos,” (“among whom,”) for there can be no doubt that Paul had in view the vices, in which he, says that the Colossians had walked, during the time that they lived in them. For living and walking differ from each other, as power does from action.

Matthew Henry Presbyterian @wholebiblehenry

The apostle exhorts the Colossians to the mortification of sin, the great hindrance to seeking the things which are above. Since it is our duty to set our affections upon heavenly things, it is our duty to mortify our members which are upon the earth, and which naturally incline us to the things of the world: "Mortify them, that is, subdue the vicious habits of...

Commenting on Colossians 3:5-7

John Gill Reformed Baptist @doctorgill

In the which ye also walked some time,.... Either in or among the children of disobedience, Col 3:6, or rather in the afore mentioned sins, Col 3:5. Sin is a road or path, in which sinners walk a way of their own, or of their own choosing and approving, though a dark and crooked one, and which leads to destruction: walking herein denotes a continued...