Halakhah on Psalms 95:10: Mishneh Torah & Jewish Law

אַרְבָּ֘עִ֤ים שָׁנָ֨ה ׀ אָ֘ק֤וּט בְּד֗וֹר וָאֹמַ֗ר עַ֤ם תֹּעֵ֣י לֵבָ֣ב הֵ֑ם וְ֝הֵ֗ם לֹא־יָדְע֥וּ דְרָכָֽי׃

For forty years was I wearied with that generation, And said: It is a people that do err in their heart, And they have not known My ways;