אַל־יֵ֘בֹ֤שׁוּ בִ֨י ׀ קֹוֶיךָ֮ אֲדֹנָ֥י יְהוִ֗ה צְבָ֫א֥וֹת אַל־יִכָּ֣לְמוּ בִ֣י מְבַקְשֶׁ֑יךָ אֱ֝לֹהֵ֗י יִשְׂרָאֵֽל׃
Let not them that wait for Thee be ashamed through me, O Lord GOD of hosts; Let not those that seek Thee be brought to confusion through me, O God of Israel.
Read halakhic rulings (Jewish law) on Psalms 69:7: and classical halakhic sources.