Psalms 73:13-16

13 Verily I have cleansed my heart in vain, and washed my hands in innocency.
14 For all the day long have I been plagued, and chastened every morning.
15 If I say, I will speak thus; behold, I should offend against the generation of thy children.
16 When I thought to know this, it was too painful for me;