“Therefore you shall keep this statute at the appointed time year after year.”
Exodus 13:10 (BSB)
Context Reading
8And on that day you are to explain to your son, ‘This is because of what the LORD did for me when I came out of Egypt.’ 9It shall be a sign for you on your hand and a reminder on your forehead that the Law of the LORD is to be on your lips. For with a mighty hand the LORD brought you out of Egypt. 10Therefore you shall keep this statute at the appointed time year after year. 11And after the LORD brings you into the land of the Canaanites and gives it to you, as He swore to you and your fathers, 12you are to present to the LORD the firstborn male of every womb. All the firstborn males of your livestock belong to the LORD.