First John focuses on who God is. In the opening sentence of this letter, John stated that God is life. God is the source of life, the One who originates life, who gives eternal life, and who made Himself known as “the Word of Life” (1 John 1:1).

While exulting in the memory of having seen Jesus, heard Him, and touched Him, the aged apostle stated that it's this One whom “we proclaim to you” (1:3).