And Moses sent to call Dathan and Abiram, the sons of Eliab,.... He sent messengers to call them to the house of judgment, as the Targum of Jonathan, to the court of judicature, where the Jews suppose Moses, with the seventy elders, were now sitting: it seems these two men departed either before. Moses rose up from prayer, or however before he had finished his speech to Korah and the Levites; which being particularly directed to them, these men might think they had no concern in it, and went away to their own tents:

which said, we will not come up; this answer they returned to the messengers, and by them to Moses, declaring that they denied his power, despised his authority, and would not obey his orders, and therefore refused to come up to the tabernacle, or to the tent of Moses, or to the court of judicature, wherever it was; perhaps the first is best. Aben Ezra thinks, that as the tabernacle was in the midst of the camp, it was on an eminence, wherefore those that came to it might be said to come up to it.

And Moses sent to call Dathan and Abiram, the sons of Eliab: which said, We will not come up:

16:12 Dathan and Abiram - To treat with them and give them, as he had done Korah and his company, a timely admonition. Come up - To Moses's tabernacle, whither the people used to go up for judgment. Men are said in scripture phrase to go up to places of judgment.

12-14. Moses sent to call Dathan and Abiram-in a separate interview, the ground of their mutiny being different; for while Korah murmured against the exclusive appropriation of the priesthood to Aaron and his family, they were opposed to the supremacy of Moses in civil power. They refused to obey the summons; and their refusal was grounded on the plausible pretext that their stay in the desert was prolonged for some secret and selfish purposes of the leader, who was conducting them like blind men wherever it suited him.

16:12-15 Moses summoned Dathan and Abiram to bring their complaints; but they would not obey. They bring very false charges against Moses. Those often fall under the heaviest censures, who in truth deserve the highest praise. Moses, though the meekest man, yet, finding God reproached in him, was very wroth; he could not bear to see the people ruining themselves. He appeals to God as to his own integrity. He bade them appear with Aaron next morning, at the time of offering the morning incense. Korah undertook thus to appear. Proud ambitious men, while projecting their own advancement, often hurry on their own shameful fall.