Reference for Psalms 50:4

יִקְרָ֣א אֶל־הַשָּׁמַ֣יִם מֵעָ֑ל וְאֶל־הָ֝אָ֗רֶץ לָדִ֥ין עַמּֽוֹ׃

He calleth to the heavens above, and to the earth, that He may judge His people:

BDB

BDB