Since I’m speaking at youth on Friday, I thought I’d put my two years of Greek to work and translate the text I’m speaking from. Here it is:
[11:33] Oh what rich depth and wisdom and knowledge are God’s, that his decisions are so beyond examining and his paths are untraceable!  For who knew the mind of the Lord, or who was his advisor?  Who first gave him something so that they would be repaid?  Because everything is from him and through him and to him—let the glory be his into eternity. Amen.
[12:1] Therefore, I challenge you, brothers and sisters, through God’s compassion, to offer up your bodies as a living, holy sacrifice pleasing to God—your thoughtful worship.  And don’t be patterned just like this age, but be transformed by a change of mind, in order to test what the will of God is: good, pleasing, complete.
 For through the grace given me, I say to each one of you: do not think better of yourself than you should, but think sanely, since God has given a piece of faith to each of you.  Because just as we have many parts in one body, and every part does not function the same,  so many of us are one body in Christ, and each person is a part of the others.  But we have different gifts based on the grace given to us, whether that’s prophetic—based on one’s piece of faith—  or for service in the church’s ministry; or as a teacher in education;  or as someone who challenges people, encouraging them; someone who shares with others in generosity; someone who leads others by working hard; or someone who happily extends mercy.
This section marks the end of a long three chapters on how God has spread Israel’s promises and gifts into all the world (Romans 9-11). Paul then enters into a longer section on how we should respond to all these gifts by offering up everything we are as “a living, holy sacrifice pleasing to God” (12:1-15:13). So in a way, this passage is a sneak peek on the last part of the letter to the Romans too.