Reference request: three types of actions

I'm looking for a sutta in which the Buddha is recalling past lives, including, I believe, lives as the great Brahma, and asks himself on account of what actions he ascended to a position of such great power; he investigates and answers that it was because of three things. I remember two--abstention and giving--but can't remember the third. If anyone knows what passage I am talking about it would be much appreciated.