Psalms 50:14

Offer unto God thanksgiving -The word rendered “offer” in this place -זבחzâbach- means properly “sacrifice.” So it is rendered by the Septuagint,θῦσονthuson- and by the Vulgate,“immola.”The word is used, doubtless, with design - to show what was the “kind” of sacrifice with which God would be pleased, and which he would approve. It was not the mere “sacrifice” of animals, as they commonly understood the term; it was not the mere presentation of the bodies and the blood of slain beasts; it was an offering which proceeded from the heart, and which was expressive of gratitude and praise.