Post-faith sealing is not the earlier operation that creates faith
This post-faith sealing (adoption and Gospel divinity via divine effects) is not the Spirit's creating infusion.
The creating work is what people commonly call inner testimony.
Creating testimony precedes faith by nature.
Experimental sealing follows faith and presupposes it.
Latin
XLVIII. Verum hoc Spiritus Sancti testimonium, quod intus perhibet adoptioni nostrae & Evangelici verbi veritati & divinitati, per effecta varia ac plane divina, quae in nobis producit, mediante Dei verbo fide suscepto & admisso, distinguendum est ab altera illius operatione, qua fidem in nobis creat & infundit, & quae etiam vulgo testimonium internum Spiritus appellari solet. Etenim illud testimonium fidem natura praecedit, ut patet; hoc vero fidem consequitur, & illam supponit.