Abstract
From the perspective of Aquinas’ Biblical commentaries, the article develops the
reflection on pignus / arra haereditatis (Eph 1:5) seeing these essential elements
of Thomas’ reflection on salvation in the terminological question of which one
is better: pignus or arra, namely the pledge or the earnest/deposit. Thomas develops
soteriology, which indicates that human salvation starts “now” and not
“later,” through the participation in the Passion of Christ and in His merits.
Analyzing Aquinas’ commentary on Ps 21, on the Letter to the Ephesians and
on the Letter to the Galatians together with the themes of Christ’s obedience
and its soteriological significance as well as His wish of voluntary death for us,
the article shows the Biblical roots of Thomas’ soteriology. The author devotes
particular attention to the analysis of the logic of inchoatio and consummatio in
Thomas’ soteriological grammar and his understanding of faith as the beginning
of eternal life and the ensuing consequences.