Deu 32:5 | NETfull | STEP | His people have been unfaithful to him; they have not acted like his children – this is their sin. They are a perverse and deceitful generation.

Deuteronomy 32:5

5 His people have been unfaithful ^{▼▼ The 3rd person masculine singular שָׁחַת (shakhat) is rendered as 3rd person masculine plural by Smr, a reading supported by the plural suffix on מוּם (mum, “defect”) as well as the plural of בֵּן (ben, “sons”).} ^{▼▼ Heb “have acted corruptly” (so NASB, NIV, NLT); NRSV “have dealt falsely.”} to him;
they have not acted like his children ^{▼▼ Heb “(they are) not his sons.”} – this is their sin. ^{▼▼ Heb “defect” (so NASB). This highly elliptical line suggests that Israel’s major fault was its failure to act like God’s people; in fact, they acted quite the contrary.}
They are a perverse ^{▼▼ Heb “twisted,” “crooked.” See Ps 18:26.} and deceitful generation.