Rom 12:1 (isv) I therefore urge you, brothers, in view of God’s mercies, to offer your bodies as living sacrifices that are holy and pleasing to God, for this is the reasonable way for you to worship.
What Paul is saying is we must offer ALL of ourselves (body, mind and soul) and ALL that we have to the service of God (Mark 12:30, John 12:26).
Not thinking that we own anything since everything we are and have comes from God (1 Chron 29:13-14, Psalm 24:1, James 1:17, Rom 11:36)!
God will not accept a part of us (Matt 6:24, 1 Cor 10:21, 2 Cor 6:15-16).
Choose carefully (Joshua 24:15, Deut 11:26-28, Pro 23:17).
God bless you today