John Calvin's Bible Commentary
Joshua 10:6
6.And the men of Gibeon sent unto Joshua, etc The course of the narrative is inverted; for the Gibeonites certainly did not wait till they were besieged, but on seeing an army levied and prepared, and having no doubt that they would have to sustain the first onset, as they had incurred general hatred, they anticipate the attack, and hasten to have recourse to the protection of Joshua. (91) To desert those to whom life had been given, would have been at once unlawful, unjust, and inhumane. Nay, as their surrender had been consequent on the agreement, they were entitled to be defended against violence and injury. With justice, therefore, they implore the Israelites, under whose protection they were; and there is no hesitation on the part of Joshua, who judges it to be his duty to defend those whose submission he had agreed to accept. They had deceived him, it is true, but after the fraud had been detected, and they had confessed it, interposing some palliating circumstances, they had obtained pardon.
Equity and a sense of duty thus did not allow the Israelites to abandon the Gibeonites to their fate. Still, Joshua is entitled to praise for his promptitude in complying with the request, and sending assistance without delay. He is said to have marched during the whole night, and thus could not have proceeded with greater haste had the safety of the whole people been at stake. Had the same sincerity always been evinced by profane nations, they would rather have assisted their allies in due time than avenged their disasters after they had suffered them. The term suddenly ought not, however, to be confined to a single day, as if Joshua had accomplished three days’ journey in a single night, and made his appearance among the Gibeonites next morning. All that is meant to be expressed is his great speed, and his not delaying his departure till next day. (92)
Though the Israelites moved their camp from Ai or that neighborhood, it was the third day before they entered the confines of the Gibeonites. Granting that they then proceeded slowly in order of battle, Joshua was still at some distance when application is made to him to assist the Gibeonites. We have seen that Gilgal was the first station after crossing the Jordan, and therefore more remote than Jericho. If any one deems it absurd, that after receiving the submission of several cities, he should have turned backwards, and left an empty district, the recovery of which from the enemy might again cost new labor, I answer, there was no ground to fear that the enemy would come forward to occupy it, and engage in an expedition attended with great danger and difficulty. It is probable that when a body of troops was selected to attack Jericho, the women, children, and all others unfit for war remained in that quiet corner, where they might have the protection of those of the Reubenites, Gadites, and half tribe of Manasseh, who had been left on the opposite bank of the Jordan. For to what end would they have carried with them into their battles children and women heavy with child, or nursing babes at their breasts? How, during the incursions of the enemy, could food be found for such a multitude, or water sufficient to supply all their flocks and herds? I conclude, therefore, that Joshua and his soldiers returned to their tents that they might refresh themselves for a little with their wives and children, and there deposit the spoils with which they had been enriched.
“The Israelites journeyed and came into the cities on the third day.” (Joshua 9:17).
In other words, the Israelites, on this particular occasion, employed three days, or rather, if we adopt the common Hebrew mode of computation, part of a first, the whole of a second, and part of a third day. Such a statement scarcely justifies the inference that the average time of making the journey between the two places was three days. — Ed.