"For verily I say unto you, Till heaven and earth pass, one jot or one tittle shall in nowise pass from the law, till all be fulfilled” (Matthew 5:18 KJV)
Can we build scriptural doctrine on one word? Jesus answers the Sadducees who doubted the resurrection by quoting God’s words to Moses, saying “I am the God of Abraham, and the God of Isaac, and the God of Jacob? He is not the God of the dead, but the God of the living: ye therefore do greatly err” (Mark 12:26, 27). Jesus clinches his argument over God’s use of the word . “am”, to prove God is presently the God of Abraham, Isaac and Jacob.
How about one letter?
The Apostle Paul did. In the third chapter of Galatians Paul says “Now to Abraham and his seed were the promises made. He saith not, And to seeds, as of many; but as of one, And to thy seed, which is Christ” (Galatians 3:16). Here Paul points out God‘s use of “seed” (one) over “seeds” (many) and names Christ as the one through whom god fulfilled his promise. I want to share a wonderful truth that you don’t hear very often. I think it will encourage the heart of the weary. We talk a lot as Christians about having faith “in” Christ. Indeed, it is precisely because of this faith (that we have been given from God) that makes us heirs of the wonderful salvation that is in Christ. The word the King James Bible translates as “in” is the Greek word “en”. Several times in the New Testament we read Paul’s phrase, “faith of Christ”, or “faith of Jesus Christ”. He does not say faith in Christ, though it is true that we must and have placed our faith in the person and work of Christ. For example, “Even the righteousness of god which is by faith of Jesus Christ unto all and upon all them that believe . .” (Romans 3:22), or again in Galatians 2:16, “Knowing that a man is not justified by the works of the law, but by the faith of Jesus Christ, even we have believed in Jesus Christ, that we might be justified by the faith of Christ, and not by the works of the law: for by the works of the law shall no flesh be justified”. The phrase also appears in Galatians 3:22. The King James translation is correct. In the Greek two different words are used, the Greek word “en" (see left) is translated as “in”, but the greek “ek” (see right) is translated “of”. What this means is that the phrase “faith of Christ" means "Jesus' faith", just as the French name “Ponce de Leon” means “Ponce from Leon”. Ponce proceeds or comes from the town of Leon. Leon is the origin of Ponce. It was Christ’s perfect faith that redeemed us all. By the grace of God we have been granted the gift of faith that been placed in Jesus. “For by grace are ye saved through faith (of trusting), and that (faith) is not of yourselves. It is the gift of God so that no one can boast" (Ephesians 2:8,9), and again, "to unto you it is given in the behalf of Christ (because of what Jesus did on the cross), not only to believe on him, but also to suffer for his sake" (Philippians 1:29).It is true that we must have faith to be saved. However, it is not our faith that saves us. It is Jesus' faith that saves us, the same faith which is given as a gift making it possible for us to believe. This is why we must be born again of the spirit. Remember that “all men have not faith” (2 Thessalonians 3:2). "What do you have that you did not receive” (1 Corinthians 4:7).
Remember O troubled heart, it is Jesus’ perfect faith that has redeemed you, and Jesus’ perfect faith that will finish what He started in your life. Is your faith weak? You can put your trust in his perfect faith - the faith of God - to see you through!