Ulangan 6:13

6:13 You must revere the Lord your God, serve him, and take oaths using only his name.

Ulangan 6:16

Exhortation to Obey the Lord Exclusively

6:16 You must not put the Lord your God to the test as you did at Massah. ¹ 

[6:16]  ¹ sn The place name Massah (מַסָּה, massah) derives from a root (נָסָה, nasah) meaning “to test; to try.” The reference here is to the experience in the Sinai desert when Moses struck the rock to obtain water (Exod 17:1-2). The complaining Israelites had, thus, “tested” the Lord, a wickedness that gave rise to the naming of the place (Exod 17:7; cf. Deut 9:22; 33:8).