expression
the Alpha and the Omega
A set phrase from the Book of Revelation, used to refer to God or Christ as the beginning and the end of all things. In Japanese, it is used in religious contexts or metaphorically to mean something all-encompassing or eternal.
キリスト教では、神はアルファにしてオメガであると信じられている。
In Christianity, God is believed to be the Alpha and the Omega.
この理論は、まさにアルファにしてオメガと言えるほど包括的だ。
This theory is so comprehensive that it can truly be called the Alpha and the Omega.