Reference for Psalms 37:30

פִּֽי־צַ֭דִּיק יֶהְגֶּ֣ה חָכְמָ֑ה וּ֝לְשׁוֹנ֗וֹ תְּדַבֵּ֥ר מִשְׁפָּֽט׃

The mouth of the righteous uttereth wisdom, and his tongue speaketh justice.