Romans 12:1-8 KJV
 I beseech you therefore, brethren, by the mercies of God, that ye present your bodies a living sacrifice, holy, acceptable unto God, which is your reasonable service.  And be not conformed to this world: but be ye transformed by the renewing of your mind, that ye may prove what is that good, and acceptable, and perfect, will of God.  For I say, through the grace given unto me, to every man that is among you, not to think of himself more highly than he ought to think; but to think soberly, according as God hath dealt to every man the measure of faith.  For as we have many members in one body, and all members have not the same office:  So we, being many, are one body in Christ, and every one members one of another.  Having then gifts differing according to the grace that is given to us, whether prophecy, let us prophesy according to the proportion of faith;  Or ministry, let us wait on our ministering: or he that teacheth, on teaching;  Or he that exhorteth, on exhortation: he that giveth, let him do it with simplicity; he that ruleth, with diligence; he that sheweth mercy, with cheerfulness.
What does sacrifice means? Sacrifice simply means to offer an offering gods or God or a higher authority just to pacify and find favour from them. Usually, the offered sacrifice is killed or burnt to show complete surrender to the higher authority. This practice is common in the Old Testament.
In the passage above, Paul urge us to do the will of God and to find His favour in His sight by offering ourselves as a living sacrifice, holy and pleasing to God, which is our spiritual act of worship. Living sacrifice here does not mean a mere ritual activity but a spiritual act which involve the heart, mind and will, in worship and obedient service.
What God want from us are things that are pleasing to Him, which lead to our spiritual and moral growth, not things pleasing to us. Living sacrifice can also mean a measure of faith, the power given by God to each believer to fulfil our various ministries.
Are you dead in sin or you are a living sacrifice? Renew your mind through God’s Word to become a living sacrifice today. Don’t con form to the standard of this world. Always position your mind to always please the Lord. Aside this, there is no more reasonable service unto the Lord.
It is better to worship God with one’s body, heart and mind if one wants to present oneself as a living sacrifice to Him. Are you presenting yourself to God as a living sacrifice? Present yourself today as a living sacrifice to God.
I pray that God will make us His living sacrifice in Jesus Name.