Verse 3. We are bound to thank God always for you. See Barnes "1 Th 1:2".

As it is meet. As it is fit or proper.

Became that your faith groweth exceedingly. It would seem probable from this, that Paul had heard from them since his first epistle was written. He had doubtless received intelligence of the error which prevailed among them respecting his views of the coming of the Lord Jesus, and of the progress which the truth was making, at the same time.

And the charity of every one of you all toward each other. Your mutual love.