word - My Anagram is Coming

Here is another one of my classic puzzles (1, 2, 3, 4, and 5).

Me, I'm telling you something,

My anagram is coming,

My other anagram is to make something different.

My Second anagram's homophone is found in the Bible.

Answer

Your word is

Alert

Me, I'm telling you something,

Alert

My anagram is coming,

Later

My other anagram is to make something different.

Alter

My third anagram's homophone is found in the Bible.

Altar