“And he trusted in Hashem, and he counted it to Him for righteousness.” (Genesis 15:6)
Usually, this verse is understand as “He” counted to “him” for righteousness. God regarded Abraham’s faith as virtuous. But the Hebrew can go either way. So let’s see how the Sefer Avodas Yisrael spins this:
Abraham trusted in Hashem, and he (Abraham) counted this to Him (God) for righteousness. Meaning, Abraham regarded his very faith in Hashem as a favor bestowed upon him by Hashem in His righteousness – giving Abraham even more cause to trust in Him!