There must have been many people throughout the ages who asked themselves this question: What on earth possessed me, that I did what I've done!
Like Cain must have said after he murdered his brother. Or Achan after he took some forbidden loot (Jos.7). Or Judas after he betrayed Jesus...
In recent history someone like Hitler must have asked himself that question before he died, or the perpetrators who installed the terrible Apartheid regime in South Africa, and so the list goes on...
But what about you and me my fellow believer. Could we ever comprehend what on earth possessed us after we did something really stupid?
God is ever graceful and merciful if we come to a standstill, have genuine remorse, and begin all over on a fresh new page of our lives.
REMEMBER: "If we confess our sins, he is faithful and just and will forgive us our sins and purify us from all unrighteousness." (1 Joh.1:9)