Deuteronomy 6:16
Ye shall not tempt the Lord - Ye shall not provoke him by entertaining doubts of his mercy, goodness, providence, and truth.
As ye tempted him in Massah - How did they tempt him in Massah? They said, Is the Lord among us or not? Exodus 17:1-7. After such proofs as they had of his presence and his kindness, this was exceedingly provoking. Doubting God' s kindness where there are so many evidences of it, is highly insulting to God Almighty.
