Good Intention Drawing Blessing

הברכה אשר תשמעו ובקללה כ' אם

"The blessing, that you shall hear," and regarding the curse it is written, "if (you shall not hear)" (Devarim 11:27-28).

The Sfas Emes notes a difference in the pesukim's wording: by the blessing the Torah says "that you shall hear," while by the curse it says "if you shall not hear." This shift in language is what he comes to explain.

ע"פ מאמרם ז"ל כי מחשבה טובה הקב"ה מצרפה למעשה לכן כשמוכנים לשמוע

Based on what Chazal taught, that a good thought the Holy One, Blessed is He, joins to the deed, therefore when one is prepared to hear,

He builds on the teaching of Chazal that Hashem credits a good intention as though the deed itself were already done, so that mere readiness to listen already carries weight.

הברכה חל ומסייע לצאת מכח אל הפועל

the blessing takes effect and assists him to bring it forth from potential into actuality;

Because of this, the moment a person is willing and ready to hear, the blessing already takes hold and helps him translate that good intention into actual deeds.

והקללה רק כשעוברין במעשה ח"ו:

whereas the curse comes only when one actually transgresses in deed, chas v'shalom.

The curse, by contrast, is not triggered by a mere thought or inclination; it sets in only when a person actually carries the wrongdoing through in action, Heaven forbid.

Summary: The Sfas Emes draws a careful distinction from the wording of the pesukim in Re'eh: the blessing is tied to "that you shall hear," while the curse is framed conditionally with "if you shall not hear." He explains this through the principle of Chazal that the Holy One, Blessed is He, joins a good thought to the deed, so that the very readiness to listen already draws down the blessing and helps a person bring his good intentions from potential into actuality. The curse, however, operates by a stricter measure: it takes effect only when a person actually transgresses in deed, chas v'shalom, and not merely through a stray thought. In this we see Hashem's kindness, that the good is credited from the moment of willingness, while the negative requires completed action to take hold.