The connections of the first one with the name Shaddai are twofold. According to the biblical chronology it is El Shaddai who ordains the custom of circumcision in Genesis 17:1 and, as is apparent in midrash Tanhuma Tzav 14 (cf. a parallel passages in Tazri‘a 5 and Shemini 5) the brit milah itself is the inscription of the part of the name on the body: