A man receives the seed of faith. He does not choose the seed. Can the soil boast as an accomplishment the reception of the seed? If there is any work involved it is the work of the sower, who represents the Church—an instrument of Grace. Once the seed is received, there are many ways to fall away. A man can turn away the gift offered to him.
I think Angainor finally agreed that we must do something - we must choose to receive the seed just as Mary chose to received God’s seed in the Incarnation! BRAVO!!! No backsliding now.
Now, as for the other parts about the things that can make the seed not take root there are also implications of choices. We must cooperate with God’s grace to receive the rain and the sunshine necessary to keep the soil fertile (sacraments - especially the sacraments of baptism, reconciliation and Eucharist). We must not take the company of those who will choke off our access to truth or be too concerned with secular/worldly matters. We must not have rocky hearts and must love one another as Christ loves us (this comes though grace, prayer and as fruits of The Spirit). Everything requires our cooperation with God’s grace - “Our Daily Bread”. We must eat, drink and taste that The Lord is good (literally - The Eucharist, The Bread of Life) in the same manner that the Jews ate the manna in the dessert. We must love our neighbor as our self and we must love God with our whole heart. Do all these things and we certainly have no room to boast. I think you way overemphasize the bit about “boasting” where it almost becomes a flagellant sort of self worship on man’s sinful nature. The focus is on the choice of reaching out, opening up and receiving the seed of faith and trusting in God and daily cooperation with His work to get us out of banishment in the wilderness to our heavenly home. We know (from the Old Testament) that we will need God every step of the way as new temptation, hardships and trials meet us along the way to push us away from our path to the Promised Land. Some will lose heart and fall away or follow other men’s ideas. Those that persevere through the growing pains in faith and walk with God - get to the Promised Land. Those that fall behind or get lost Jesus will search out and bring back to the fold. But we also know that only a relative few (compared to those that are called - The Elect) make it all the way. Don’t miss this caravan…
James