כִּֽי־פְ֭שָׁעַי אֲנִ֣י אֵדָ֑ע וְחַטָּאתִ֖י נֶגְדִּ֣י תָמִֽיד׃
He aquí, en maldad he sido formado, Y en pecado me concibió mi madre.
Rashi on Psalms
and my sin is always before me Since I regret [my sin] and worry about it, it is as though it is constantly before me, always.