For you were going astray like sheep; but are now returned to the Shepherd and Overseer{"Overseer" is from the Greek episkopon, which can mean overseer, curator, guardian, or superintendent.} of your souls.
Then in the book of Hebrews chapter thirteen, "Let us then offer unto God the sacrifice of praise, even the fruit of our lips unto him" ( Hebrews 13:15 ). So the spiritual sacrifices that we offer to God are our praises unto Him. Coming before Him with a broken heart, offering our praises to God.