John 1:4

“In him was life, etc.] The Persic version reads in the plural number, “lives”. There was life in the word with respect to himself; a divine life, the same with the life of the Father and of the Spirit; and is in him, not by gift, nor by derivation or communication; but originally, and independently, and from all eternity: indeed he lived before his incarnation as Mediator, and Redeemer. Job knew him in his time, as his living Redeemer; but this regards him as the word and living God, and distinguishes him from the written word, and shows that he is not a mere idea in the divine mind, but a truly divine person: and there was life in Christ the word, with respect to others; the fountain of…”

“In Him was life--essentially and originally, as the previous verses show to be the meaning. Thus He is the Living Word, or, as He is called in Jo1 1:1-2, "the Word of Life." the life . . . the light of men--All that in men which is true light--knowledge, integrity, intelligent, willing subjection to God, love to Him and to their fellow creatures, wisdom, purity, holy joy, rational happiness--all this "light of men" has its fountain in the essential original "life" of "the Word" (Jo1 1:5-7; Psa 36:9).”

“In him was life - The evangelist had just affirmed John 5:3 that by the λόγος Logos or “Word” the world was originally created. One part of that creation consisted “in breathing into man the breath of life,” Genesis 2:7. God is declared to be “life,” or the “living” God, because he is the source or fountain of life. This attribute is here ascribed to Jesus Christ. He not merely made the material worlds, but he also gave “life.” He was the agent by which the vegetable world became animated; by which brutes live; and by which man became a living soul, or was endowed with immortality. This was a “higher” proof that the “Word was God,” than the creation of the material worlds; but there is…”

“In him was life - He was the foundation of life to every living thing, as well as of being to all that is. And the life was the light of men - He who is essential life, and the giver of life to all that liveth, was also the light of men; the fountain of wisdom, holiness, and happiness, to man in his original state. John 1:5”

“1:4-5 God created light and dispelled the darkness (Gen 1:2-5). The darkness resists God (John 3:19-21; 12:35; Matt 6:23; Acts 26:17-18; Eph 4:17-19; 5:7-14; 2 Pet 1:19; 1 Jn 1:5-7; 2:9-11). 1:4 The Word gave life: Life was God’s original gift to his creatures (Gen 1:20-28; 2:7). Now the logos would give these creatures the possibility of new life through rebirth (John 1:13). • As one of his first creative acts, God brought light (Gen 1:3). Now, in the re-creation of humanity through Jesus Christ, God offered light and life anew. Light is a key theme in John’s Gospel.”

“him: Joh 5:21, Joh 5:26, Joh 11:25, Joh 14:6; Co1 15:45; Col 3:4; Jo1 1:2, Jo1 5:11; Rev 22:1 the life: Joh 1:8, Joh 1:9, Joh 8:12, Joh 9:5, Joh 12:35, Joh 12:46; Psa 84:11; Isa 35:4, Isa 35:5, Isa 42:6, Isa 42:7, Isa 42:16; Psa 49:6; Psa 60:1-3; Mal 4:2; Mat 4:16; Luk 1:78, Luk 1:79, Luk 2:32; Act 26:23; Eph 5:14; Jo1 1:5-7; Rev 22:16 John 1:5”