אֲשֶׁ֣ר בְּ֭יָדוֹ מֶחְקְרֵי־אָ֑רֶץ וְתוֹעֲפ֖וֹת הָרִ֣ים לֽוֹ׃
In whose hand are the depths of the earth; The heights of the mountains are His also.
Rashi on Psalms
and the heights An expression of height, like a bird that flies [up high].
אֲשֶׁ֣ר בְּ֭יָדוֹ מֶחְקְרֵי־אָ֑רֶץ וְתוֹעֲפ֖וֹת הָרִ֣ים לֽוֹ׃
In whose hand are the depths of the earth; The heights of the mountains are His also.