EXO 17:7

7 Moses/I gave that place two names [in the Hebrew language:] Massah, [which means ‘testing’], and Meribah, [which means ‘complaining’]. He/I gave it the name Massah because the Israeli people were testing Yahweh, saying “Is Yahweh really among us [and able to help us], or not?”, and he/I gave it the name Meribah because they were [continually] complaining.