Read it prayerfully

He therefore that ministereth to you the Spirit, and worketh miracles among you, doeth he it by the works of the law, or by the hearing of faith? (Galatians 3:5, KJV)

 Faith comes—it grows by hearing the Word of God. It’s not a sudden boom. “For faith cometh by hearing, and hearing by the Word of God.” That’s the law of faith.
 But how often lack of faith is due to ignorance! Faith is built on the Word: Read it prayerfully and ask God to strengthen your faith. He’ll always answer the hungry heart. His Word will give you faith for it.
 God cannot only do it, but He wants to do it! When the poor leper came to Jesus and said, “Lord, if Thou wilt, Thou canst make me clean,” the Scripture says that “Jesus put forth His hand and touched him, saying, ‘I will; be thou clean.’ And immediately his leprosy was cleansed.” He’s more willing to give than we are to receive.
 All He asks from us is that we honor Him with faith by believing His Word and trusting His promises. “For without faith it is impossible to please Him; for he that cometh to God must believe that He is, and that He is a rewarder of them that diligently seek Him.”
 Trust in the Lord. “He hath never failed in one of all His good promises.” —DBB [1]

 Faith is a reasoning trust, a trust which reckons thoughtfully and confidently upon the trustworthiness of God. —John Stott

[1] DBB Anchor Choosing to Believe