power.

Genesis 20:16
And he said to Sarah, "See, I am giving your brother a thousand pieces of silver. It is your vindication before all who are with you; you are completely cleared."

Genesis 24:64, 65
Rebekah lifted up her eyes, and when she saw Isaac, she got down from her camel . . .

because.

Ecclesiastes 5:6
Do not let your mouth cause your body to sin, and do not tell the messenger that your vow was a mistake. Why should God be angry with your words and destroy the work of your hands?

Matthew 18:10
See that you do not look down on any of these little ones. For I tell you that their angels in heaven always see the face of my Father in heaven.

Hebrews 1:14
Are not the angels ministering spirits sent to serve those who will inherit salvation?