The New Testament expresses different ways to deal with the biblical dietary laws. In Acts God intervenes supernaturally to convince Petrus to break with these laws. But later in Acts a few dietary laws were still demanded from converted pagans. Paul´s letters show that several groups in early Christianity still kept some of the biblical dietary laws. It is remarkable, that Jesus in the Gospel of Mark rejects these laws completely, although he is carefully observing other rituals of the meal. The paper gives an examination of relevant passages in which biblical laws are discussed. It shows how early Christianity struggled for a shared identity in relation to pagans, who got converted.