And this is love, that we walk after his commandments. This is the commandment, That, as you have heard from the beginning, you should walk in it.
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Cornelius a Lapide
AD 1637
For this is the commandment . . . that ye should walk, &c. Viz, that ye should make careful progress in evangelical truth and love, growing and making progress in the love of God and your neighbours, as I enjoined upon you in the very beginning of my preaching.
This is the rule of a Christian, to walk in that faith and worship which he has received from the beginning, and which we now call according to the Scriptures, the tradition of the apostles. Thus shall the faithful avoid seducers that start up in every age, teaching new doctrines. (Bristow)