וַיָּבֹ֙אוּ֙ יְחִזְקִיָּ֣הוּ וְהַשָּׂרִ֔ים וַיִּרְא֖וּ אֶת־הָעֲרֵמ֑וֹת וַֽיְבָרֲכוּ֙ אֶת־יְהוָ֔ה וְאֵ֖ת עַמּ֥וֹ יִשְׂרָאֵֽל׃ (פ)
And when Hezekiah and the princes came and saw the heaps, they blessed the LORD, and His people Israel.
Read midrashic interpretation of II Chronicles 31:8: and classical rabbinic exegesis.