'Slow' in the Bible

but repaying those who hate him {in their own person} to destroy them; he is not slow with those who hate him {in their own person}; he repays them.

“If you make a vow to the Lord your God, do not be slow to keep it, because He will require it of you, and it will be counted against you as sin.

They have made me jealous with false gods, enraging me with their worthless gods; so I will make them jealous with a people they do not recognize, with a nation slow to learn I will enrage them.