Sentence:  [W]hen God ſaith of himſelfe, that he is one who <WSD>"acquiting</WSD> will not <WSD>acquite</WSD> the wicked", his meaning is, that whatſoeuer may be ſuppoſed becauſe of his patience, yet he will not fully and finally diſcharge thoſe who goe on ſtill in their vngodly courſes, and preſume vpon his "Mercy", without repentance. 
Meaning of the word marked with <WSD> tags:  To declare or find innocent or not guilty.