2 John 1:3

“Grace be with you, mercy [and] peace, etc.] This form of salutation, or wish and prayer for the blessings mentioned, from God the Father, and from the Lord Jesus Christ, is the same used by other apostles; (see <540102>1 Timothy 1:2 <650102>Jude 1:2) and (see Gill on “<450107>Romans 1:7”). Only it is added here with respect to Christ, that he is the Son of the Father in truth and love; which is mentioned by the apostle to confirm the deity of Christ, which is plainly implied in wishing for the above things equally from him, as from the Father; and to oppose and confront some heretics of those times, who denied the true and proper sonship of Christ; and therefore he calls him, “the Son of the…”

“Grace be with you--One of the oldest manuscripts and several versions have "us" for you. The Greek is literally, "Grace shall be with us," that is, with both you and me. A prayer, however, is implied besides a confident affirmation. grace . . . mercy . . . peace--"Grace" covers the sins of men; "mercy," their miseries. Grace must first do away with man's guilt before his misery can be relieved by mercy. Therefore grace stands before mercy. Peace is the result of both, and therefore stands third in order. Casting all our care on the Lord, with thanksgiving, maintains this peace. the Lord--The oldest manuscripts and most of the oldest versions omit "the Lord." John never elsewhere uses this…”

“Grace be unto you ... - See the notes at Romans 1:7. This salutation does not differ from those commonly employed by the sacred writers, except in the emphasis which is placed on the fact that the Lord Jesus Christ is “the Son of the Father.” This is much in the style of John, in all of whose writings he dwells much on the fact that the Lord Jesus is the Son of God, and on the importance of recognizing that fact in order to the possession of true religion. Compare 1 John 2:22-23; 1Jo 4:15; 1 John 5:1-2, 1 John 5:10-12, 1 John 5:20. In truth and love - This phrase is not to be connected with the expression “the Son of the Father,” as if it meant that he was his Son “in truth and love,” but is…”

“Grace takes away guilt; mercy, misery: peace implies the abiding in grace and mercy. It includes the testimony of God's Spirit, both that we are his children, and that all our ways are acceptable to him. This is the very foretaste of heaven itself, where it is perfected. In truth and love - Or, faith and love, as St. Paul speaks. Faith and truth are here synonymous terms. 2 John 1:4”

“1:3 Grace, mercy, and peace are blessings of which John is confident for those who live in truth and love, and who demonstrate by their actions that they are God’s children.”

“Grace: Rom 1:7; Ti1 1:2 be: Gr. shall be the Son: Jo1 2:23, Jo1 2:24, Jo1 4:10 in truth: Jo2 1:1; Zac 8:19; Gal 5:6; Ti1 1:14; Ti2 1:13 2 John 1:4”