“But about that day or hour no one knows, not even the angels in heaven, nor the Son, but only the Father” (Matthew 24:36).

You’ve heard people say it. When someone they know dies they say “Uncle Bob is watching over us as an angel in heaven.”
That may be sweet. That may make one feel better about the death of a loved one. But there is not one shred of evidence in scripture that this is what happens when people die. In fact, we know without a shadow of doubt that people do not become angels when they die.
Angels are created beings just like human beings are created beings. Angels were present with God before the creation of the world – “Where were you when I laid the earth’s foundation? Tell me, if you understand….On what were its footings set, or who laid its cornerstone – while the morning stars sang together and all the angels shouted for joy?” (Job 38:4-7).
Just like dogs don’t become people when they die, people do not become angels when they die. Angels were created by God for the purpose of serving his kingdom.
Popular culture may believe whatever they want. But not so with Christians. Christians believe what the Bible teaches.