The Bible tells us about different kinds of angels and what they did. 

In Genesis (3:24), after Adam and Eve were sent out of the Garden of Eden, an angel called a “cherubim” with a fiery sword prevented them from reentering the Garden. 

In Isaiah (6:1, 2) a vision is described with another type of angel called a “seraphim.” 

In Genesis (22:10-11), right before Abraham was about to offer his son Isaac, an angel stopped him just in time.

The Bible also tells us about a very special angel named Gabriel who brought important messages. In Luke (1:19, 26-27), he visited Zacharias, the future father of John the Baptist, and also Mary, the future mother of Jesus.

In Jude (1:8-9), we read about Michael the Archangel, who was the chief messenger of God who had more power and higher authority than all other angels.

Angels strengthened Elijah and Daniel in the Old Testament. 

In Acts (5:17-21), an angel released the apostles from prison so they could continue preaching.

Those who follow Jesus have “guardian angels” to protect against Satan’s attacks. Psalms says, (91:11-13, 37:7) “For He will give his angels charge concerning you, to guard in all your ways.” 

How many angels are there? Revelation (5:11) (KJV) says, “…and I heard the voice of many angels…and the number of them was ten thousand times ten thousand, and thousands and thousands,” so that’s definitely a lot!
  
The Bible does NOT tell us to worship angels, nor should we try to contact them or ask them for help. In fact, Colossians (2:18) (Contemporary English Version CEV) says, “Don’t be cheated by people who make a show of acting humble and who worship angels. They brag about seeing visions. But it is all nonsense, because their minds are filled with selfish desires.”

So, what did angels do in the Bible? They performed the specific job that God wanted them to do and then they left. They were always sent to ONLY do the will of God, not to make friends with humans. 

This video is from Christian Questions Podcast. For more information please go to https://christianquestions.com