If we believe in Jesus, we will do greater works than He did (Jn 14:12). By faith, we can move mountains (Mt 17:20), conquer the world (1 Jn 5:5), obtain God's promises, break the jaws of lions, put out raging fires, and escape the devouring sword (Heb 11:33-34). By faith, we accept the grace of salvation (Eph 2:8). Definitely, faith is a very great gift from God.
However, as great as faith is, it must be permanent. Otherwise, we have believed in vain (1 Cor 15:2). Only by lasting faith do we hold fast to the gospel (1 Cor 15:2). Therefore, it is extremely important to protect and develop our faith. Our daily prayer should be: "I do believe. Help my lack of faith!" (Mk 9:24, our transl.)
Faith is confidence, assurance, and conviction (Heb 11:1). Faith is a result of a good relationship. Therefore, faith can increase or decrease frequently because all relationships continually deepen or lessen. Consequently, we need to maximize our communication with the Lord so as to deepen our relationship with Him, thereby strengthening our faith. We need the Scriptures (Rm 10:17), Christian community, the breaking of the bread (the Eucharist), and the prayers (Acts 2:42). We need ever-increasing and everlasting faith. Lord, increase our faith (Lk 17:5).