How can Faith be increased?
The Word say, “Faith comes by hearing , and hearing by the Word of God” (Romans 10:17). Since this is true, Faith increased as believers filled their lives with the Word. Hence, believers have so little Faith to exercise because of the lack of the Word of God filling their lives. So, the more Christians exercise themselves in Scripture; the more their Faith will grow.
There is one disclaimer to this rule, some believers make it a ritual to read the Bible, some even memorize it, but their Faith doesn’t seem to grow. Does this nullify the truth that the Word of God brings Faith? No. The Bible says, “it is not of the letter, but of the spirit; for the letter killeth, but the spirit giveth life” (2 Corinthians 3:6).
It also adds, “It is the spirit that quickened; the flesh profited nothing; the words that I speak unto you, they are spirit and they are life” (John 6:63)
Exercising oneself in the Scripture without the illumination of the Spirit is less effective or, like the Bible say, ineffective to increase Faith.