Those things, which ye have both learned, and received, and heard, and seen in me, do: and the God of peace shall be with you.
Both - rather, 'the things also which ye have learned,' etc.; the things which, besides being recommended in words, have been also recommended by my example, carry into practice. Heard, and seen. These two refer to Paul's example, as "learned" and "received" (accepted), to his teaching.
And - `and then,' as the result (Philippians 4:7). Not only 'the peace of God,' but "the God of peace" Himself, "shall be with you."