Job 31:28

New English Translation

²⁸then this^[a] also would be iniquity to be judged,^[b]
for I would have been false^[c] to God above.

Job 31:28 tn Heb “it.”
Job 31:28 tn See v. 11 for the construction. In Deut 17:2ff. false worship of heavenly bodies is a capital offense. In this passage, Job is talking about just a momentary glance at the sun or moon and the brief lapse into a pagan thought. But it is still sin.
Job 31:28 tn The verb כָּחַשׁ (kakhash) in the Piel means “to deny.” The root meaning is “to deceive; to disappoint; to grow lean.” Here it means that he would have failed or proven unfaithful because his act would have been a denial of God.

Deuteronomy 13:9

New English Translation

⁹Instead, you must kill him without fail!^[a] Your own hand must be the first to strike him,^[b] and then the hands of the whole community.

Deuteronomy 13:9 tn The Hebrew text uses the infinitive absolute for emphasis, which the translation indicates with the words “without fail” (cf. NIV “you must certainly put him to death”).
Deuteronomy 13:9 tn Heb “to put him to death,” but this is misleading in English for such an action would leave nothing for the others to do.

New English Translation (NET)