The first part concerns the probatic pool of Jerusalem, with the following subdivision to explain (queritur) three secrets (secreta) that explain its healing power.
a) virtus sancte crucis et passionis Ihesu Christi (the Passion and the legend about the Cross - Legenda crucis)
b) virtus baptisimi (baptism)
c) virtus confessionis (confession) (f. r2r)
The five porches of the pool symbolize five types of sin, namely: “cogitatio, locutio, operatio, omissio, obstinatio” (f. r2v) [note the resemblance with the Confiteor in the liturgy].
Second part
Why was only one healed among all the sick people present at the pool? He was the only with a good disposition, i.e. who had full confidence in Jesus. God's liberality did not lack, but the other people did not have the right disposition (classic exemplum: the sun is there, only if you open the window it can enter), for the same reason Jews, infidels and Saracens do not convert today, since they prefer to remian in the prison of Moses and Muhammad: “Ecce qua est ratio quare non illuminat iudeos vel alios infideles, quia sunt et volunt essere in carcere Moysi, vel saracenorum, qui volunt essere in carcere Machometi, et sic de aliis” (f. r2v - noteworthy the parallel Moises / Mohammad. The episode shows also the necessity of the baptism (symbolized by the pool) for the salvation, yet with the possibility of the baptism of desire, here defined a baptism in fire, i.e. provided by the Holy Spirit: “Sed quid de infideli qui vult omnino baptizari et hoc desiderat et affectat, sed non posset ire quia forte occiditur vel moritur? Idem de infirmo qui non potet ire, quia vel claudus vel iacet in lecto, et nemo vult eum baptizare. Dicendum quod in tali casu talis sanatur a Christo, sicut iste fuit sanatus a Christo, et baptizatur baptisimo flaminis, id est spiritussancti” (f. r3r).
The same reasoning applies to contrition, with the discussion of the cases in which one cannot confess since he/she would risk being killed, but has contrition and desire to be confessed. Exemplum of a sinner who repented while listening a sermon against lust, she started weeping and felt for the sorrow and died; the people around her felt sorry for her, since she died without confession, so the preacher invite everyone to pray for her (“Bona gens, orate deum pro ea…”) since she showed at least contrition, and a voice from the sky not only reassured everyone about her destiny but invited to ask for her intercession, proving how faith and contrition are enough to be saved: ““Frater (sic) non oretis deum per ista, sed oretis eam ut oret pro vobis, quia ipsa est in paradiso” Videatis ergo quod ista non venit ad piscina confessionis, sed fides et contritio sufficiunt”.
Third part
The goal is to heal not only the body but also the soul (reference to the Glossa, he was sick since he was a sinner). Hence the order not to sin again, that is, to avoid relapsing, for this reason, after confession, the medicine of penance is given. Final appeal to confession, using first person plural: “Itaque bona gens omnes infirmi sumus, veniamus ergo ad piscinam ut mundemur per penitentiam, ut sanemur ab omnibus infirmitatibus et peccatis nostris et per consequens veniamus ad gloriam” (f. r3v).
... the only with a good disposition, i.e. who had full
confidence
in Jesus. God's liberality did not lack, but the other...