Psalms 36:4

He deviseth mischief upon his bed; he setteth himself in a way that is not good; he abhorreth not evil.

He deviseth ... his bed - even there, where one lies down for sleep, he cannot be quiet from restless plans of evil.

In a way that is not good; he abhorreth not evil. His positive sins flow from his negative disobedience to God's direct precepts. Our safety against great sins is to set ourselves 'in a good way,' and to "abhor that which is evil." Compare Romans 12:9.