Reference for Psalms 61:3

מִקְצֵ֤ה הָאָ֨רֶץ ׀ אֵלֶ֣יךָ אֶ֭קְרָא בַּעֲטֹ֣ף לִבִּ֑י בְּצוּר־יָר֖וּם מִמֶּ֣נִּי תַנְחֵֽנִי׃

From the end of the earth will I call unto Thee, when my heart fainteth; Lead me to a rock that is too high for me.