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

In other versions

But you shall kill him. Your hand shall be first against him to put him to death, and afterward the hand of all the people.

You must certainly put them to death. Your hand must be the first in putting them to death, and then the hands of all the people.

Instead, you must kill him. Your hand is to be the first against him to put him to death, and then the hands of all the people.

You must put them to death! Strike the first blow yourself, and then all the people must join in.

But you shall certainly kill him; your hand shall be first against him to kill him and next the hand of all of the people.

But thou shalt surely kill him; thine hand shall be first upon him to put him to death, and afterwards the hand of all the people.

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