1 Peter 1:3

“Blessed be the God and Father of our Lord Jesus Christ, etc.] The epistle begins here with thanksgiving to God, or an ascription of blessing, praise, and glory to him; for this does not mean an invoking or conferring a blessing on him; neither of which can be, for there is not a greater than he to be invoked, nor can anything be added to his blessedness: but God may be blessed by his creatures when they speak well of him, and his wonderful works of creation, providence, and grace; when they ascribe all their mercies, spiritual and temporal, to him; give him the glory of them, and express their thanks for them in heart, lip, and life; and such a blessing of God for a special and spiritual…”

“He begins, like Paul, in opening his Epistles with giving thanks to God for the greatness of the salvation; herein he looks forward (1) into the future (Pe1 1:3-9); (2) backward into the past (Pe1 1:10-12) [ALFORD]. Blessed--A distinct Greek word (eulogetos, "Blessed BE") is used of God, from that used of man (eulogemenos, "Blessed IS"). Father--This whole Epistle accords with the Lord's prayer; "Father," Pe1 1:3, Pe1 1:14, Pe1 1:17, Pe1 1:23; Pe1 2:2; "Our," Pe1 1:4, end; "In heaven," Pe1 1:4; "Hallowed be Thy name," Pe1 1:15-16; Pe1 3:15; "Thy kingdom come," Pe1 2:9; "Thy will be done," Pe1 2:15; Pe1 3:17; Pe1 4:2, Pe1 4:19; "daily bread," Pe1 5:7; "forgiveness of sins," Pe1 4:8, Pe1 4:1;…”

“Blessed be the God and Father of our Lord Jesus Christ - See the notes at 2 Corinthians 1:3. Which according to His abundant mercy - Margin, as in the Greek, “much.” The idea is, that there was great mercy shown them in the fact that they were renewed. They had no claim to the favor, and the favor was great. People are not begotten to the hope of heaven because they have any claim on God, or because it would not be right for him to withhold the favor. See the notes at Ephesians 2:4. Hath begotten us again - The meaning is, that as God is the Author of our life in a natural sense, so he is the Author of our second life by regeneration. The Saviour said, John 3:3 that “except a man be born…”

“Blessed be the God and Father of our Lord Jesus Christ - His Father, with respect to his divine nature; his God, with respect to his human. Who hath regenerated us to a living hope - An hope which implies true spiritual life, which revives the heart, and makes the soul lively and vigorous. By the resurrection of Christ - Which is not only a pledge of ours, but a part of the purchase - price. It has also a close connexion with our rising from spiritual death, that as he liveth, so shall we live with him. He was acknowledged to be the Christ, but usually called Jesus till his resurrection; then he was also called Christ. 1 Peter 1:4”

“1:3-9 In most New Testament letters, the greeting is followed by a section of thanksgiving or praise. Peter praises God that his mercy brings new spiritual life, which produces confident expectation about the future despite sufferings in the meantime. 1:3 born again: New birth is a way of describing Christian conversion (cp. John 3:1-13; Jas 1:18; 1 Jn 2:29; 3:9; 4:7; 5:1, 4, 18). This Greek word, which occurs again in 1 Pet 1:23, brackets the message of 1:1-25.”

“Blessed: Kg1 8:15; Ch1 29:10-13, Ch1 29:20; Psa 41:13, Psa 72:18, Psa 72:19; Co2 1:3; Eph 1:3, Eph 1:17; Eph 3:20 which: Exo 34:6; Psa 86:5, Psa 86:15; Jon 4:2; Rom 5:15-21; Eph 1:7, Eph 2:4, Eph 2:7-10; Ti1 1:14; Tit 3:4-6 abundant: Gr. much. hath: Pe1 1:23, Pe1 2:2; Joh 1:13, Joh 3:3-8; Jam 1:18; Jo1 2:29, Jo1 3:9, Jo1 4:7, Jo1 5:1, Jo1 5:4, Jo1 5:18 unto: Rom 5:4, Rom 5:5, Rom 8:24, Rom 12:12, Rom 15:13; Co1 13:13; Col 1:23, Col 1:27; Th1 1:3; Tit 2:13; Heb 3:6, Heb 6:18, Heb 6:19; Jo1 3:3 by: Pe1 3:21; Isa 26:19; Rom 4:25, Rom 5:10, Rom 8:11; Co1 15:20; Eph 2:6; Th1 4:13 1 Peter 1:4”