'Qualify' in the Bible

You are to anoint them just as you anointed their father so they may serve me as priests. Their anointing is to qualify them to belong to a perpetual priesthood from generation to generation."

Aaron then shall present the Levites before the Lord as a wave offering from the sons of Israel, that they may qualify to perform the service of the Lord.

“Behold, I have received His command to bless [Israel].He has blessed, and I cannot reverse it.