The Bible doesn't tell us much about angels, but it tells us all we need to know.
Read / Listen
Read Psalm 103:20-21 / Hebrews 1:14 / 1 Peter 1:12
Listen to passage & devotional:
Heidelberg Catechism Q&A 124
Q. What does the third request mean?
A. “Your will be done on earth
as it is in heaven” means,
Help us and all people
to reject our own wills
and to obey your will
without any back talk.
Your will alone is good.
Help us one and all to carry out
the work we are called to,
as willingly and faithfully
as the angels in heaven.
Chances are your idea of what an angel is has been shaped more by culture than by the Bible. This is not only because so many books, movies and TV shows have stereotyped angels in certain ways, but also because when it comes down to it, although the Bible certainly affirms the existence of angels & demons, it doesn't really tell us much about who they are or what they do.
The final stanza of Psalm 103 gives us some insight. All of our major English translations render these words slightly differently, so it's good to look at them all to get a full picture:
Mighty ones (NIV, ESV) / Mighty heroes (LEB) / Powerful warriors (NET) / Ones who excel in strength (KJV)
Do the LORD's bidding & obey His word (NIV) / Do the LORD's word, obeying the voice of His word (ESV) / Do His word by obeying the sound of His word (LEB) / Carry out His decrees and obey His orders (NET) / Do His commandments, hearkening unto the voice of His word (KJV)
Are servants (NIV, NET) / ministers (ESV, KJV) / attendants (LEB) who do the LORD's will.
The author of Hebrews indicates the mission of the angelic host is to serve those who inherit salvation. That's us! What a blessing & honor to know God's entire angel army exist to serve & minister to us!
Finally, Peter informs us that the angels long to look at the beauty of our salvation in Christ.
When you pray the words "your will be done, on earth as it is in heaven," you're asking God to equip you to carry out His work just as "willingly and faithfully as the angels in heaven."
That might seem intimidating, since you don't have the same supernatural powers that the angels have. But notice that the catechism isn't calling you to do the same thing the angels do, rather it's calling you to have the same willing and faithful attitude that they have.
The idea continues to persist that when we die, we get a promotion of sorts and become angels. This isn't what the Bible teaches. Even if this was the case, it wouldn't be a promotion, since you in a sense already outrank the angels. They weren't created in God's image as you have been. They were created to serve you, not vice versa!
So be content with the talents and abilities you've been blessed with, but be sure to model the eager desire to "hearken unto the the voice of the LORD's word," just as the angels revealed in scripture do.
ACKNOWLEDGE WHO GOD IS: Our Father, who is praised by angels, the heavenly host, and all of His works;
ALIGN YOUR LIFE WITH GOD'S WILL: Thank God for the angels who serve on your behalf (though we rarely know how they do so), and pray that you'll model their eager attitude to carry out God's will;
ASK GOD FOR WHAT YOU NEED:
Read the New Testament in a year, a chapter a day - Revelation 7