And he said, Come. And when Peter was come down out of the ship, he walked on the water, to go to Jesus. Matt. 14:29 KJV
God desires that His children know Him. This is the content and context of the new covenant. About this desire, the Bible says, “But this shall be the covenant that I will make with the house of Israel; After those days, saith the Lord, I will put my law in their inward parts, and write it in their hearts; and will be their God, and they shall be my people. And they shall teach no more every man his neighbour, and every man his brother, saying, Know the Lord: for they shall all know me, from the least of them unto the greatest of them, saith the Lord: for I will forgive their iniquity, and I will remember their sin no more.” (Jer. 31:33-34 KJV). God desires that we believe Him and don’t doubt.
When the disciples saw a figure at the forth watch of the night and being troubled by their outlook, they were fearful for they imagined the figure was a spirit but they were very wrong in their outlook for that figure was rather their friend, mentor and leader; The Lord Jesus. It must be understood that what is seen is not as central as how things are seen. We must get and gain this truth.
Unbelief is a sin with grave consequences that have made light the Word of God whereas must be otherwise viewed as serious. We cannot forsake, object or reject the Laws of God, make light of what God takes serious and expect to live. For the wages, compensation for sin (wrong doing) is death. (Romans 6:23 KJV)
As the Bible story continued, Jesus helped the faith of the disciples as was recorded, “But straightway Jesus spake unto them, saying, Be of good cheer; it is I; be not afraid.” (Matt. 14:27 KJV). And Peter gained confidence to approach The Lord Jesus “walking on water” except for his doubt he was not sustained. He (again) saw the wind boisterous; he doubted and began to sink.
Thank God for the faith of our Lord Jesus, who shared the same occasion but identified Peter’s problem, “O thou of little faith, wherefore didst thou doubt?” (Matt. 14:31 KJV) Do not look back. Look unto Jesus the author and finisher of our faith.
Man must believe God and not doubt, “But without faith it is impossible to please and be satisfactory to Him. For whoever would come near to God must [necessarily] believe that God exists and that He is the rewarder of those who earnestly and diligently seek Him [out].“ (Heb. 11:6).