Bible Dictionary · A
A
Alpha, the first letter of the Greek alphabet, as Omega is the last. These letters occur in the text of Rev 1:8, Rev 1:11; Rev 21:6; Rev 22:13, and are represented by “Alpha” and “Omega” respectively (omitted in R.V., Rev 1:11). They mean “the first and last.” (Comp. Heb 12:2; Isa 41:4; Isa 44:6; Rev 1:11, Rev 1:17; Rev 2:8.) In the symbols of the early Christian Church these two letters are frequently combined with the cross or with Christ’s monogram to denote his divinity.
From Easton’s Bible Dictionary (1897), by Matthew George Easton.