Christians assume Jesus is Yahweh just because he is called 'Kurios' in the New Testament, but this title is used for many others without implying their divinity.

The argument begins with the observation that the Hebrew Scriptures emphasize the importance of calling on the name of Yahweh for salvation, as seen in Joel 2:32. In the New Testament, however, believers are instructed to call on the name of Jesus for salvation, as indicated in Acts 22:14-16 and Romans 10:9-13. This shift demonstrates a significant theological claim about Jesus' identity. Furthermore, the New Testament records instances where Jesus is prayed to in a manner similar to how Old Testament believers prayed to Yahweh, such as in Acts 7:59-60, where Stephen prays directly to Jesus. This practice of invoking Jesus for help and healing mirrors the prayers directed to Yahweh in the Psalms, reinforcing the notion that Jesus holds a divine status akin to Yahweh. Therefore, the use of 'Kurios' for Jesus is not merely a title but an assertion of his divine authority and role in salvation, paralleling the Old Testament understanding of God.