Thanksgiving And The Nations

Sicut scriptum est: Propter hoc confitebor tibi in gentibus, et nomini tuo cantabo. Exemplo prophetico probat; scriptum est enim in psalmo decimo septimo gentes admittendas ad gratiam Dei ad percipiendam salutem. Vox enim Christi est, qua futurum dixit quod in gentibus praedicatio ejus fructum habitura esset confessionis sacramenti Dei; ideo gratias ex hoc agit Filius Patri in obedientiam gentium. Unde in Evangelio ait: Confitebor tibi, Pater domine coeli et terrae, quia abscondisti haec a sapientibus, et prudentibus, et revelasti ea parvulis; quoniam bonum placitum fuit ante te. Confessio ergo ista unius Dei est in Trinitate, ex qua surgit laetitia; ut post veri confessionem laetus decantet misericordiam et donum Dei. Ambrosiaster, In Epistolam ad Romanos, Caput XV Source: Migne PL 17.174a

As it is written, 'Because of this I shall confess to you among the nations, and I will sing your name.' 1 He proves it with a prophetic example, for it was written in the seventeenth Psalm that the nations shall be admitted to the grace of God for the reception of salvation. And it is the voice of Christ, which has spoken of future things, that His preaching shall have fruit among the Gentiles in the confession of the mystery of God. Therefore the Son gives thanks to the Father in the obedience of the nations. Hence in the Gospel it says, 'I shall confess to you, Father, Lord of heaven and earth, that you have hidden these things from the wise and prudent and revealed them to little ones, because it was a good that was pleasing before you.' 3 Therefore this is a confession of the one God in Trinity, from which joy rises up, so that after the confession of truth there is joyful singing of the mercy and gift of God. Ambrosiaster, Commentary On The Letter of Saint Paul To The Romans, Chapter 15 1 Rom 15.9, Ps 17.49 2 Mt 11.25-26