The valley of Berachah - Probably, the Wady Bereikut, which lies at a short distance from Tekoa toward the northwest.

Assembled themselves in the valley of Berachah - "The valley of Benediction;" and so in the latter clause. - Targum.

And on the fourth day they assembled themselves in the valley of Berachah,.... As it was afterwards called from what they did there, as follows, which was the reason of its name:

for there they blessed the Lord; returned thanks to him for this wonderful appearance on their behalf, and gave him the glory of it; no doubt but they had given him praise before in some sort and manner, but now in a set, solemn, and public manner, with one heart and voice they united in ascribing honour, blessing, and glory to him:

therefore the name of the same place was called the valley of Berachah unto this day; the valley of Blessing; this name it bore in the times of Ezra, the writer of this book, even after the Jews returned from the Babylonish captivity; it is thought to be the same that is called by Jerom (w) Cepharbarucha, which he speaks of as not far from Engedi, see 2 Chronicles 20:2, others will have it to be the same with the valley of Jehoshaphat, but not so likely, that seems to be nearer Jerusalem.

(w) Epitaph. Paulae.

On the fourth day the men of Judah gathered themselves together, to give thanks to God the Lord for this blessing, in a valley which thence received the name בּרכה עמק (valley of blessing), and which cannot have been far from the battle-field. Thence they joyfully returned, with Jehoshaphat at their head, to Jerusalem, and went up, the Levites and priests performing solemn music, to the house of God, to render further thanks to the Lord for His wondrous help (2 Chronicles 20:27.). The ancient name בּרכה still exists in the Wady Bereikut, to the west of Tekoa, near the road which leads from Hebron to Jerusalem. "A wide, open valley, and upon its west side, on a small rising ground, are the ruins of Bereikut, which cover from three to four acres" (Robinson's New Biblical Researches, and Phys. Geogr. S. 106; cf. v. de Velde, Memoir, p. 292). Jerome makes mention of the place in Vita Paulae, where he narrates that Paula, standing in supercilio Caphar baruca, looked out thence upon the wide desert, and the former land of Sodom and Gomorrah (cf. Reland, Pal. illustr. pp. 356 and 685). There is no ground, on the other hand, for the identification of the valley of blessing with the upper part of the valley of Kidron, which, according to Joel 3:2, Joel 3:12, received the name of Valley of Jehoshaphat (see on Joel 3:2). - On 2 Chronicles 20:27, cf. Ezra 6:22; Nehemiah 12:43.

And on the fourth day they {q} assembled themselves in the valley of Berachah; for there they blessed the LORD: therefore the name of the same place was called, The valley of Berachah, unto this day.

(q) To give thanks to the Lord for the victory: and therefore the valley was called Berachah, that is, blessing or thanksgiving, which was also called the valley of Jehoshaphat, Joel 3:2,12 because the Lord judged the enemies according to Jehoshaphat's prayer.

20:26 Berachah - Heb. of blessing; so called from their solemn blessings and praises given to God in it upon this occasion.

Berachah: that is, blessing

20:20-30 Jehoshaphat exhorted his troops to firm faith in God. Faith inspires a man with true courage; nor will any thing help more to the establishing of the heart in shaking times, than a firm belief of the power, and mercy, and promise of God. In all our trust in the Lord, and our praises of him, let us especially look at his everlasting mercy to sinners through Jesus Christ. Never was an army so destroyed as that of the enemy. Thus God often makes wicked people destroy one another. And never was a victory celebrated with more solemn thanksgivings.