Ki Seitzei 23:23 · unit 2

TT #412 · Parashas Ki Seitzei · Fifth Aliyah · Passuk 23:23

The Complete Passuk

מוֹצָ֥א שְׂפָתֶ֖יךָ תִּשְׁמֹ֣ר וְעָשִׂ֑יתָ כַּאֲשֶׁ֨ר נָדַ֜רְתָּ לַיהֹוָ֤ה אֱלֹהֶ֙יךָ֙ נְדָבָ֔ה אֲשֶׁ֥ר דִּבַּ֖רְתָּ בְּפִֽיךָ׃

That which has gone out of your lips you shall observe and do, according as you have vowed to the Lord your God a freewill offering, which you have promised with your mouth.

Chabad.org — 23:23

Source Citation

Torah Temimah points to Sifrei Devarim 267.

Sefaria

Core Text of Chazal

Core Text
כַּאֲשֶׁר נָדַרְתָּ … נְדָבָה אֲשֶׁר דִּבַּרְתָּ בְּפִיךָ – דִּבּוּר שְׂפָתַיִם.

English: “According as you have vowed … which you have promised with your mouth” — the binding force of speech.

On the daf / in context: The verbal declaration itself creates the binding obligation.

Type of Learning

Derash on the power of speech.

What Is Learned

A vow or freewill commitment spoken with the mouth is binding and must be fulfilled.