The reading: “In the Second Psalm” is the best attested and is followed by the T. R., R.V. and Wescott and Hort. Πρώτῳ is found in D. and is supported by the Fathers. It is the more difficult reading and for this reason is preferred by Tischendorf, Lachmann, Meyer, Alford and Gloag. If it is correct, we must suppose that what we now call the first psalm was considered introductory and that our second psalm was counted as the first. In some Heb. mss. this order actually occurs. The reading δευτέρῳ, however, is better supported. The expression: “this day have I begotten thee” refers evidently to the resurrection of Christ. (Cf. Heb. i. 5; Rom. i. 4.) The resurrection is conceived as the solemn inauguration of Christ into his office as theocratic king represented under the figure of begetting.—G.B.S.