'Command' in the Bible

I was very glad to find some of your children walking in the truth, in keeping with a command we have received from the Father.

So now I urge you, dear lady—not as if I were writing you a new command, but one we have had from the beginning—that we love one another.

And this is love: that we walk according to His commands. This is the command as you have heard it from the beginning: you must walk in love.