The King James Bible addresses faith in several passages:
Hebrews 11:1-6 (KJV)
1 Now faith is the substance of things hoped for, the evidence of things not seen. 6 But 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.
Romans 10:17 (KJV)
17 So then faith cometh by hearing, and hearing by the word of God.
Ephesians 2:8-9 (KJV)
8 For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: 9 Not of works, lest any man should boast.
2 Corinthians 5:7 (KJV)
7 (For we walk by faith, not by sight:)
Mark 11:22-24 (KJV)
22 And Jesus answering saith unto them, Have faith in God. 23 For verily I say unto you, That whosoever shall say unto this mountain, Be thou removed, and be thou cast into the sea; and shall not doubt in his heart, but shall believe that those things which he saith shall come to pass; he shall have whatsoever he saith. 24 Therefore I say unto you, What things soever ye desire, when ye pray, believe that ye receive them, and ye shall have them.