Offering Spiritual Sacrifices

"You . . . are being built up as a spiritual house for a holy priesthood, to offer up spiritual sacrifices acceptable to God through Jesus Christ" (1 Pet. 2:5).

Spiritual sacrifices are acts of praise and worship offered to God through Jesus Christ.

The primary mission of a Hebrew priest was to offer acceptable sacrifices to God. That's why God gave detailed instructions regarding the kinds of sacrifices He required. For example, if a lamb was offered, it had to be perfect—without deformity or blemish. Then it had to be sacrificed in a prescribed manner. It was a serious offense to offer sacrifices in an unacceptable manner—a mistake that cost Aaron's sons their lives (Lev. 10:1-2).
The Old Testament sacrificial system pictured the supreme sacrifice of Christ on the cross. When He died, the veil that separated the Holy of Holies from the rest of the Temple split in two, signifying personal access to God through Christ. From that moment on, the Old Testament sacrifices ceased to have meaning. As the writer of Hebrews said, "We have been sanctified through the offering of the body of Jesus Christ once for all. And every priest stands daily ministering and offering time after time the same sacrifices, which can never take away sins; but He, having offered one sacrifice for sins for all time, sat down at the right hand of God. . . . For by one offering He has perfected for all time those who are sanctified" (Heb. 10:10-14).
Christ's sacrifice was complete. Nothing further is needed for salvation. The spiritual sacrifices that believers are to offer aren't sacrifices for sin, but acts of praise and worship that flow from a redeemed life. They're the fruit of salvation and are acceptable to God because they're offered through His Son.
Since Jesus is the only mediator between God and man, your access to God is through Him alone. Anything that pleases Him is acceptable to the Father. Seeking His will, His plans, and His kingdom all are aspects of offering up acceptable spiritual sacrifices. In effect, your entire life is to be one continuous sacrifice of love and praise to God. May it be so!
Suggestions for Prayer
When you pray, be sure everything you say and every request you make is consistent with Christ's will.
For Further Study
Read Hebrews 10:1-18, noting how Christ's sacrifice differed from Old Testament