Ibisobanuro ahagana hasi ku ipaji b Nubwo Abayahudi bo mu kinyejana cya mbere batekerezaga ko bari ubwoko bwemewe kubera ko bakomokaga kuri Aburahamu, bari bategerezanyije amatsiko kubona umuntu umwe wari kuza ari Mesiya cyangwa Kristo.—Yoh 1:25; 7:41, 42; 8:39-41.