The Septuagint exerted an important influence upon the language of the New Testament. The Septuagint was the Greek Bible of the New Testament writers, and the influence of a Bible upon language is very strong. A good example is afforded by the influence of the King James Version upon the whole development of modern English. It is not surprising, therefore, that as the Septuagint was influenced by Hebrew, so the language of the New Testament also displays a Semitic coloring. That coloring was induced partly by the Septuagint, but it was also induced in other ways. Part of the New Testament, for example the words of Jesus, goes back ultimately to an Aramaic original. All the New Testament writers except one were Jews, and had spoken Aramaic as well as Greek. No wonder, then, that their Greek was influenced by the Semitic languages. This Semitic influence upon the language of the New Testament is not so great as was formerly supposed, but it cannot be ignored. The New Testament is written in the natural, non-literary form of the Greek world language. That is the main thing to be said. But upon this base is superposed an appreciable influence of Hebrew and Aramaic.
The importance of the Septuagint for the early Christian mission was inestimable. Every pioneer missionary knows how difficult it is to create the vocabulary necessary to express new religious ideas. In the case of the earliest Christian mission, that labor had already been done. It had been done by the Jews of Alexandria. By the Septuagint, the great ideas of the Old Testament--and upon these ideas Christianity was based--had already been put into a Greek form. The Christian Church needed only to develop what had been begun. The Church made good use of her opportunity. The influence of the Septuagint upon the religious vocabulary of the New Testament writers was profound. The Septuagint had provided a vocabulary which was understood already by great masses of people--by the Jews of the dispersion and by the hosts of the "God-worshipers" who attended the synagogues. Naturally the Christian missionaries used the words which people could understand.
The Judaism of the dispersion was a wonderful preparation for the gospel. Israel ought to be regarded with gratitude and sympathy. But the ultimate object of gratitude is God.