No, humans do not eventually become angels. Many people believe
that believers become angels when we die, but there is no Biblical
evidence, or even suggestion, of such a doctrine. Angels were a unique
creation which God created before He created mankind, and we are a
unique creation completely separate from angels (1 Corinthians 4:9,
Hebrews 2:5-9,16, 2 Peter 2:10-11).
Do We Become Angels After We Die?
Like humans, there are both elect and non-elect angels (1 Timothy 5:21,
2 Peter 2:4, Jude 1:6). Hebrews 1:14 says, "... ministering spirits
sent to serve those who will inherit salvation."
However, the Bible does inform us that "... some people have
entertained angels without knowing it" (Hebrews 13:2). I believe that
this happened on at least one occasion for me, as I have documented in my
book, True Christianity.
Owen Weber 2009