Tehillim 95:7-9 Orthodox Jewish Bible (OJB)
7 For He is Eloheinu; and we are the people of His pasture, and the tzon of His yad. Today if ye will hear His voice,
8 Harden not your lev, as in Merivah, and as in the Yom Massah in the midbar;
9 When your avot tested Me, tried Me, and saw My work.