"And it shall be to you for a tassel," i.e., the fastening of the tassel with the dark blue thread to the corners of your garments shall be to you a tassel, "that ye, when ye see it, may remember all the commandments of Jehovah, and do them; and ye shall not stray after your hearts and your eyes, after which ye go a whoring." The zizith on the sky-blue thread was to serve as a memorial sign to the Israelites, to remind them of the commandments of God, that they might have them constantly before their eyes and follow them, and not direct their heart and eyes to the things of this world, which turn away from the word of God, and lead astray to idolatry (cf. Proverbs 4:25-26). Another reason for these instructions, as is afterwards added in Numbers 15:40, was to remind Israel of all the commandments of the Lord, that they might do them and be holy to their God, and sanctify their daily life to Him who had brought them out of Egypt, to be their God, i.e., to show Himself as God to them.

Numbers 16:6 Parallel Commentaries

Numbers 16:35-40,46-48 And there came out a fire from the LORD, and consumed the two hundred and fifty men that offered incense...

Leviticus 10:1 And Nadab and Abihu, the sons of Aaron, took either of them his censer, and put fire therein, and put incense thereon...

Leviticus 16:12,13 And he shall take a censer full of burning coals of fire from off the altar before the LORD...

1 Kings 18:21-23 And Elijah came to all the people, and said, How long halt you between two opinions? if the LORD be God, follow him: but if Baal...