'Slow' in the Bible

And Moses said to the Lord, O Lord, I am not a man of words; I have never been so, and am not now, even after what you have said to your servant: for talking is hard for me, and I am slow of tongue.

And the Lord went past before his eyes, saying, The Lord, the Lord, a God full of pity and grace, slow to wrath and great in mercy and faith;