Being God's living sacrifice involves much more than enduring inconvenience. The second is to lead the student to understand that a Christian makes his or her body God's living sacrifice daily by placing himself or herself on God's altar. Through serving and godly behavior he or she gives self each day to God's purposes. God's purposes are honored in all of that day's activities. Each age changes the human concept of sacrifice.
Time reshapes the human concept.
God is ageless. Time does not reshape His concept. Human material and technological progress never alter God's concept of sacrifice. Changes in human lifestyles alter the way people make sacrifices. However, those changes never alter God's concept.