Sforno on Leviticus 22:19/ספורנו על ויקרא כ״ב:י״ט

1לרצונכם , as a sacrifice that will confer G’d’s goodwill upon you, and not for the Temple treasury.

2תמים זכר, it must be male and unblemished seeing the Creator is described as having produced work which is perfect, unblemished, when He created the universe. (Compare Deuteronomy 32,4)