A name applied (1) to any ancestor (Deut. 1:11; 1 Kings 15:11; Matt. 3:9; 23:30, etc.); and (2) as a title of respect to a chief, ruler, or elder, etc. (Judg. 17:10; 18:19; 1 Sam. 10:12; 2 Kings 2:12; Matt. 23:9, etc.). (3) The author or beginner of anything is also so called; e.g., Jabal and Jubal (Gen. 4:20, 21; comp. Job 38:28).
Applied to God (Ex. 4:22; Deut. 32:6; 2 Sam. 7:14; Ps. 89:27, 28, etc.).
1) As denoting his covenant relation to the Jews (Jer. 31:9; Isa. 63:16; 64:8; John 8:41, etc.).
2) Believers are called God's "sons" (John 1:12; Rom. 8:16; Matt. 6:4, 8, 15, 18; 10:20, 29). They also call him "Father" (Rom. 1:7; 1 Cor. 1:3; 2 Cor. 1:2; Gal. 1:4)