LUK 3:8

8 Therefore, produce p'ri tov l'teshuva [(fruit worthy of repentance)], and do not begin to presume within yourselves, saying, We have the zechut Avot [(merit of the Fathers)] of Avraham Avinu, for, I say to you, that Hashem is able from these avanim [(stones)] to raise up banim to Avraham Avinu.