The offering of firstfruits appears to have been a custom of primitive antiquity and was connected with the earliest acts of sacrifice. See Genesis 4:3-4. The references to it here and in Exodus 23:19 had probably been handed down from patriarchal times. The specific law relating to the firstborn of living creatures was brought out in a strong light in connection with the deliverance from Egypt Exodus 13:2, Exodus 13:12-13; compare Exodus 23:19; Leviticus 22:27; Deuteronomy 26:2-11; Nehemiah 10:35.
The first of thy ripe fruits, and of thy liquors - See the margin. The rendering of our King James Bible is a paraphrase.