When Frumentius returned to Axum he baptised his step-father the jewish priest Anbaram and also his previous student and now the king of Axum Ezana and his brother Shizana. Both brothers changed their name after their baptism into Abraha(Lightmaker) for Ezana and Atsbaha(Dawnbreaker) for Shizana. After his conversion to christianity what king Ezana did first was making Christianity the official religion of the Kingdome. In his action, making Christianity officail, Ezana made Ethiopia the second country to officially adopt the Christian religion, after Armenia.Since then Christianity has been a defining character of Ethiopian culture and daily life. The early church of Ethiopia was similar to the one in Alexanderia and functioned as one untill 451 when at the Council of Chalceadon the Ethiopian church separated itself from the rest. This is because the Council decided that Christ has two nature, which are human and Devine(Diophosyte) as oppposed to one, which is Devine(Monophsyte). The Ethiopian Church rejected this and retained its Monophosyte beleif. The Ethiopian church though, instead of refering itself as Monophosyte, prefers the name "Non-Chalcaedonian".
Since then the Ethiopian church has evolved in many ways than one. Through time the church developed its distinct characterstics that made it stand out among its peers in the Orient. One thing that the Ethiopian church clung to eversince its foundation is its Jewish heritage. Even now the Ethiopian form of christianity can be called a " Messianic Jewish" faith because it still shows strong Jewish Elements. For instance one of the important foundation of the church is the Ark of the Covenant. The ark which was built by Moses through the guidance of the Lord God (HaShem)stayed with the Israelites untill King Solomon became King. After that the Bible ceases mentioning the ark. According to ancient Ethiopian litrature called the "Kibr al Negast"( Glory of the Kings) the ark was brought by Menelik, the son of King Solomon of Israel and Queen of Sheba of Ethiopia, to Ethiopia after he came back from visiting his father in Jerusalem.
According to the Kibr al Negast the ark has been residing in Ethiopia ever since. This story of the ark's disapperance from Jerusalem has been seen as a legend by some historians untill recently when many historians started to take it seriously because of archeological discoveries that attests to the Ethiopian claim. But authors such as Graham Hankok do not think that the ark came out of the Temple of Solomon in the time of the same king. According to Hankok's claim , somewhat credible, the ark must have been brought out of the "Mekdas" or the inner sanctum at the time of the king Mennaseh. Menasseh had walked astray from the way of the Lord God of Israel and had introduced pagan idols such as Ashtarot as diety in the Temple. Therefore the preists took the ark and fled to Egypt near Elephantine. They stayed there untill they quarrled with the Egyptians and were forced to move southward to Ethiopia. There in the sanctuary of the islands in Lake Tana, the source of the Blue Nile, the ark stayed till it was moved to Axum when Christianity became the official religion of the Axumite Empire. Every year on the holiday of "Tamqat" all the churches in Ethiopia hold a procession in their respective cities which is led by decons carrying a replica of the Ark of the Covevnant. Even in Axum where the ark rests now the original one is not used for Tamqat procession.Another aspect in the Ethiopian church that reminds of the ancient Hebrews is the way the priests dance and worship. The way the church musicians play the harps, flutes, drums and cistras and the way the priests move and chant with fragrant smoke billowing out of their cisterns remind one of their ancient ties with the Biblical Hebrews. Another tie with ancient Judaism in the Ethiopian church is the way the inside of Ethiopian churchs are built, which in the way of the ancient Temple of Solomon. The strict observance of dietry and circumscition laws in the church and the society is another tie with ancient Judaism.