Charles Hodge on Ephesians 6:23

V. 23. Εἰρήνη τοῖς ἀδελφοῖς, peace be to the brethren. This is the usual form of salutation or benediction. It is not concord, but all the fruits of χάρις or favour of God. Καὶ ἀγάπη μετὰ πίστεως, this does not mean love together with faith, as though two distinct blessings were intended; but rather love united with faith. Faith they had; Paul’s prayer was that love might be connected with it. The love intended must be brotherly love. These blessings are sought ἀπὸ Θεοῦ πατρὸς καὶ Κυρίου Ἰησοῦ Χριστοῦ, from God the Father and the Lord Jesus Christ. The Father and Son are united as objects of worship and the source of spiritual and saving blessing. He from whom Paul sought these blessings, is he to whom those who need them must look in order to obtain them.