And Moses rose up
Either from the ground, upon which he fell on his face, or from the seat on which he sat at the door of the tabernacle; though he seems to have stood there; it may be, it only signifies that he obeyed the divine order, and went about it directly, as often in Scripture persons are said to arise, when they go about any thing they are directed, or choose to do: and went unto Dathan and Abiram;
to endeavour to convince them of their evil, and bring them to repentance for it, and to reclaim them from their folly: and the elders of Israel followed him;
either some principal persons of the tribes, called elders, both from their age and prudence; or the seventy elders lately chosen to assist Moses in the affairs of government, as Aben Ezra thinks these followed him to show their respect unto him, and their approbation of his conduct, and for vindication of his character, which had been aspersed by those men, and to give the more weight to what should be said unto them, for their conviction and reformation.
The Brenton translation of the Septuagint is in the public domain.