If we are to be the true seed of Abraham we must therefore not only be baptized but also have a very real faith in God's promises, just as he had. He is therefore called "the father of all them that believe...who also walk in the steps of that faith of our father Abraham, which he had" (Rom. 4:11,12). "Know ye therefore (i.e. really take it to heart!) that they which are of faith, the same are the children of Abraham" (Gal. 3:7).
"Uzao" inabidi uwe na sifa za babu yake ikiwa tunataka kuwa uzao wa Abrahamu wa kweli basi yatupasa sio tubatizwe tu bali tuwe na imani hasa katika ahadi za Mungu, kama aliyokuwa nayo barabara kwa hiyo ameitwa "baba yao wote wanaoamini ….. ambao wanafuata vile vile nyanyo za imani hiyo ya baba yetu Abrahamu, aliyokuwa nayo" (Rum. 4:11,12) " Fahamuni basi, wale walio wa imani, hao ndio wana wa Abrahamu" (Gal 3:7).