|alpha and omega|
|1.||the first and last, a phrase used in Revelation 1:8 to signify God's eternity|
|2.||the basic reason or meaning; most important part|
The beginning and the end. In the Greek alphabet, in which the New Testament was written, alpha is the first letter and omega is the last. In the Book of Revelation, God says, “I am Alpha and Omega, the first and the last,” meaning that God remains from the beginning to the end of time.
alpha and omega
The beginning and the end, the first and the last, as in She had to master the alpha and omega of the new computer program before she could even begin. This idiom and its meaning, based on the first and last letters of the Greek alphabet, appears in the New Testament (Revelation 1:8): "I am Alpha and Omega, the beginning and the ending, saith the Lord," where it is repeated three more times.