BG 3.22-24
There is nothing in the three worlds, O Pârtha, that should be done by Me, nor anything unattained that might be attained; yet I mingle in action. For if I mingled not ever in action unwearied, men all around would follow My path, O son of Prithâ. These worlds would fall into ruin, if I did not perform action; I should be the author of confusion of castes, and should destroy these creatures.