‘Jesus is Lord’
‘The most frequent name for God in the OT, Yahweh (LXX Kyrios, “Lord”), now becomes the Church’s favorite name for Christ. The Church’s earliest confession of faith in Christ was in all likelihood “Jesus is Lord” (cf. Rom. 10:9; Phil. 2:9–11). Hence, all that can be said about the name of Yahweh—that prophets prophesy in that name (Jer. 20:9), the righteous trust in that name (Isa. 50:10), people call upon that name (Ps. 105:1), etc.—can be and is said about the name of Jesus Christ (Acts 4:17f.; Jn. 14:1; 1 Cor. 1:2).’
G.W. Hawthorne, ISBE (2nd ed.), art. ‘Name’