Verse 6: And Joshua (Gen. 37:29, 34) rent his clothes, and fell to the earth upon his face before the ark of the LORD until the eventide, he and the elders of Israel, and (1 Sam. 4:12; 2 Sam. 1:2; 13:19; Neh. 9:1; Job 2:12) put dust upon their heads.
[He tore] Which was a custom in morning, both public and private (Drusius): as in Genesis 37:29, 34; 44:13; Job 2:12; Matthew 26:65 (Masius). They were in no way thinking that God was going to make light of His promises; but they were gathering that He, having been offended, refused His help, and so their souls were greatly perturbed (Masius).
Joshua rent his clothes, in testimony of great sorrow, as Genesis 37:34; 44:13, for the loss felt, the consequent mischief feared, and the sin which he suspected. Fell to the earth upon his face, in deep humiliation and fervent supplication.
[Before the ark] Before the Tabernacle outside (Bonfrerius). As close as he was able to come, facing the Ark; for, since he was not the High Priest, he was not able to enter the Holy of Holies (Menochius out of Serarius, Bonfrerius). This shows that they yet retained hope in God, whom they remembered often to be prevailed upon on previous occasions (Masius).
Until the eventide; continuing the whole day in fasting and prayer.
[The elders] The Eldership, of whose counsel he was making much use (Masius). They were elders, not so much in age, as in dignity and wisdeom (Drusius).
[Dust upon their heads] As it belonged to custom in mourning, 1 Samuel 4:12; 2 Samuel 1:2; 13:19 (Drusius), even among the Heathen, in Homer’s Iliad 18 concerning Achilles, and Virgil’s Æneid 12 (Malvenda out of Masius). They were also sitting in dust (Drusius, Masius). It appears that both ceremonies arose from that in Genesis 3:19, for dust thou art, and unto dust shalt thou return (Masius).
Put dust upon their heads; as was usual in case of grief and astonishment, 1 Samuel 4:12; 2 Samuel 1:2; 13:19; Jonah 3:6; Micah 1:10.
 Hebrew: וַיִּקְרַ֙ע יְהוֹשֻׁ֜עַ שִׂמְלֹתָ֗יו וַיִּפֹּל֩ עַל־פָּנָ֙יו אַ֜רְצָה לִפְנֵ֙י אֲר֤וֹן יְהוָה֙ עַד־הָעֶ֔רֶב ה֖וּא וְזִקְנֵ֣י יִשְׂרָאֵ֑ל וַיַּעֲל֥וּ עָפָ֖ר עַל־רֹאשָֽׁם׃