1 Corinthians 1:9

“God is faithful, by whom ye were called, etc.] These words contain arguments, assuring the saints of their confirmation in grace, and of their being preserved blameless to the day of Christ, taken from the faithfulness of God, who is always true to his promises: whatever he has said, he will do it; he will never suffer his faithfulness to fail; and since he has made so many promises concerning the establishment of his people, and their perseverance to grace, they may assure themselves of them; and also from his having called them by his grace, for whom he effectually calls by his grace, he glorifies; and particularly from his having called them unto the fellowship of his Son Jesus Christ our…”

“faithful--to His promises (Phi 1:6; Th1 5:24). called--according to His purpose (Rom 8:28). unto . . . fellowship of . . . Jesus--to be fellow heirs with Christ (Rom 8:17-28), like Him sons of God and heirs of glory (Rom 8:30; Th2 2:14; Pe1 5:10; Jo1 1:3). CHRYSOSTOM remarks that the name of Christ is oftener mentioned in this than in any other Epistle, the apostle designing thereby to draw them away from their party admiration of particular teachers to Christ alone.”

“God is faithful - That is, God is true, and constant, and will adhere to his promises. He will not deceive. He will not promise, and then fail to perform; he will not commence anything which he will not perfect and finish. The object of Paul in introducing the idea of the faithfulness of God here, is to show the reason for believing that the Christians at Corinth would be kept unto everlasting life. The evidence that they will persevere depends on the fidelity of God; and the argument of the apostle is, that as they had been called by Him into the fellowship of his Son, his faithfulness of character would render it certain that they would be kept to eternal life. The same idea he has…”

“God is faithful - To all his promises; and therefore "to him that hath shall be given." By whom ye are called - A pledge of his willingness to save you unto the uttermost. 1 Corinthians 1:10”

“1:9 God . . . is faithful: See 10:13; Deut 7:9; 1 Thes 5:24. • he has invited you: God has chosen them and brought them into partnership with his Son (cp. Rom 8:28-39).”

“God: Co1 10:13; Num 23:19; Deu 7:9, Deu 32:4; Psa 89:33-35, Psa 100:5; Isa 11:5, Isa 25:1; Isa 49:7; Lam 3:22, Lam 3:23; Mat 24:35; Th1 5:23, Th1 5:24; Th2 3:3; Tit 1:2; Heb 2:17, Heb 6:18, Heb 10:23, Heb 11:11; Rev 19:11 by: Col 1:24; Rom 8:28, Rom 8:30, Rom 9:24; Gal 1:15; Th1 2:12; Th2 2:14; Ti2 1:9; Heb 3:1; Pe1 5:10 the fellowship: Co1 1:30, Co1 10:16; Joh 15:4, Joh 15:5, Joh 17:21; Rom 11:17; Gal 2:20; Eph 2:20-22, Eph 3:6; Heb 3:14; Jo1 1:3, Jo1 1:7, Jo1 4:13 1 Corinthians 1:10”