Chroniques 2 9:16 Midrash : Kohelet Rabbah

וּשְׁלֹשׁ־מֵא֤וֹת מָֽגִנִּים֙ זָהָ֣ב שָׁח֔וּט שְׁלֹ֤שׁ מֵאוֹת֙ זָהָ֔ב יַעֲלֶ֖ה עַל־הַמָּגֵ֣ן הָאֶחָ֑ת וַיִּתְּנֵ֣ם הַמֶּ֔לֶךְ בְּבֵ֖ית יַ֥עַר הַלְּבָנֽוֹן׃ (פ)

et trois cents autres boucliers en or battu, pour chacun desquels il employa trois cents [sicles] d’or. Le roi les fit placer dans "la maison de la Forêt du Liban".

Kohelet Rabbah

“I made myself pools of water to irrigate from them a forest which grows trees” (Ecclesiastes 2:6).
“I made myself pools of water” – an irrigation system; “to irrigate from them a forest which grows trees” – this is the Land of Israel, as it is stated: “[Three hundred shields of gold…] The king placed them in the house of the forest of Lebanon” (II Chronicles 9:16).16The shields were kept in the Land of Israel; hence, the Land of Israel is referred to as a forest.