Job 8:4 New English Translation

⁴If^[a] your children sinned against him,
he gave them over^[b] to the penalty^[c] of their sin.

Job 8:4 tn The AV and RV take the protasis down to the middle of v. 6. The LXX changes the “if” at the beginning of v. 5 to “then” and makes that verse the apodosis. If the apodosis comes in the second half of v. 4, then v. 4 would be a complete sentence (H. H. Rowley, Job [NCBC], 71; A. B. Davidson, Job, 60). The particle אִם (ʾim) has the sense of “since” in this section.
Job 8:4 tn The verb is a Piel preterite with a vav (ו) consecutive. The ו (vav) need not be translated if the second half of the verse is the apodosis of the first—since they sinned…he did this. The verb שִׁלֵּחַ (shilleakh) means “to expel; to thrust out” normally; here the sense of “deliver up” or “deliver over” fits the sentence well. The verse is saying that sin carries its own punishment, and so God merely delivered the young people over to it.
Job 8:4 tn Heb “into the hand of their rebellion.” The word “hand” often signifies “power.” The rebellious acts have the power to destroy, and so that is what happened—according to Bildad. Bildad’s point is that Job should learn from what happened to his family.

New English Translation (NET)