'Angel of God' in the Bible

Your servant thought: May the word of my lord the king bring relief, for my lord the king is able to discern the good and the bad like the Angel of God. May the Lord your God be with you.”

Joab your servant has done this to address the issue indirectly, but my lord has wisdom like the wisdom of the Angel of God, knowing everything on earth.”

Ziba slandered your servant to my lord the king. But my lord the king is like the Angel of God, so do whatever you think best.