Elements of Christianity in Beowulf

Throughout the course of the epic poem Beowulf, interspersed in the flow of verse are regular references to the Christian God. Although the language of the praise meshes well with the archaic language of the rest of the poem, the subject matter and syntax feel oddly forced. Such as the break in line 1605, where the writer compares Beowulf's sword to the melting of ice and states, "It was a wonderful thing, the way it all melted as ice melts when the Father eases the fetters off the frost and unravels the water-ropes." While there are fitting examples of kenning, the excerpt is still slightly awkward. We know that the person who finally put the oral version of Beowulf to paper was most likely a Christian monk, therefore it makes sense that the holy man would have attempted to Christianize a popular cultural story in order to help people to identify with Christianity. Have you noticed any other ancient works of literature display this same benign tampering? Does this detract or improve on the character of the literature?