# Joab lay facedown on the ground

Joab did this to honor the king and show his gratitude.

# your servant

To show respect for the king Joab refers to himself as "your servant."

# I have found favor in your eyes

"you are pleased with me" or "you have approved of me"

# in that the king

"because the king"

# the king has performed the request of his servant

"you have done what I asked you to do"