'Lenient' in the Bible

"Among the smooth stones of the ravines is your portion there they are as your lot. To them you have poured out drink offerings; you have brought grain offerings. Should I be lenient over such things?

I gave a warning when I was present the second time, and now I give a warning while I am absent to those who sinned before and to all the rest: If I come again, I will not be lenient,