Ames, Wittich, Mestrezat: define faith by refuge-fiducia fleeing to mercy in Christ
Another definitional path: faith = the refuge-fiducia by which the repenting sinner flees to God, adheres, and leans on him for mercy through Christ.
Ames: heart’s rest in God as author of life/eternal salvation — freed from every evil, gaining every good.
Wittich: hunger and thirst for righteousness plus heart-rest in God as salvation’s fountain — committing the soul in straits and temptations.
Mestrezat: the repenting sinner’s refuge to God’s mercy in Christ.
Latin
LXXXV. Alii vero fidem definiunt ab alio actu, scilicet, ab illa fiducia, qua peccator poenitens ad Deum confugit, & Deo adhaeret, eique innititur, ut misericordiam per Christum consequatur. Ita Amesio fides definitur, Acquiescentia cordis in Deo, tanquam in authore vitae, vel salutis aeternae; ut per ipsum ab omni malo liberemur, & omne bonum consequamur. Wittichio, Fames & sitis justitiae, & acquiescentia cordis in Deo, ut fonte & authore salutis; ut ei animas nostras in angustiis & tentationibus committamus. Et Joanni Mestrezatio, Perfugium peccatoris poenitentis ad Dei misericordiam in Christo.