I appeal to you therefore, brethren, by the mercies of God, to present your bodies as a living sacrifice, holy and acceptable to God, which is your spiritual worship.
I read this today and something occured to me. Isn’t this what Jesus does for us at mass? He presents his body to us, a living sacrifice, holy and acceptable to the Father.
Looked at another way: does he ask us to do something here and now that he himself does not do here and now?