Therefore, I urge you, brothers, in view of God’s mercy, to offer your bodies as living sacrifices, holy and pleasing to God—this is your spiritual act of worship.
Sacrifice is difficult, that’s why it is sacrifice. We can’t sacrifice something that is easy to give up. When God called upon Abraham to sacrifice his son Isaac, this was asking Abraham to place the greatest amount of faith Him.
When we are living sacrifices we obviously aren’t offering ourselves to be put to death. But we do put to death our own desires. We determine that nothing matters except the will of God in our lives. Our sinful desires are suppressed. Our desire to go our own way (also sinful but I’m separating it for matter of example) is sacrificed.
A few years back WWJD or What Would Jesus Do? was a popular slogan. Similarly to this, we should be asking ourselves what God would have us to do. This means sacrificing our time, our money, and using the abilities that God has given us for His glory.
We are instructed to take up our cross daily. A living sacrifice is a constant thing. It is not a onetime decision. We live our lives for the glory of God.
Keep in mind that a living sacrifice does not mean that we must be miserable. Yes it means sacrificing what we want in place of what God wants. But God also gave us our lives to live and to enjoy. An important part of evangelism is showing others the joy of your salvation and the difference that Christ makes in your life. No one would want to be a part of a religion that has an overbearing God who doesn’t want His followers to enjoy life.
When we live our lives as a sacrifice, we honor God with our decisions and our joy of living.