Do not be afraid, only believe

 «While He (Jesus) was still speaking, some came from the ruler of the synagogue’s house who said, “Your daughter is dead. Why trouble the Teacher any further?”
As soon as Jesus heard the word that was spoken, He said to the ruler of the synagogue, “Do not be afraid; only believe.” And He permitted no one to follow Him except Peter, James, and John the brother of James. Then He came to the house of the ruler of the synagogue, and saw a tumult and those who wept and wailed loudly. When He came in, He said to them, “Why make this commotion and weep? The child is not dead, but sleeping.”
And they ridiculed Him. But when He had put them all outside, He took the father and the mother of the child, and those who were with Him, and entered where the child was lying. Then He took the child by the hand, and said to her, “Talitha, cumi,” which is translated, “Little girl, I say to you, arise.” Immediately the girl arose and walked, for she was twelve years of age. And they were overcome with great amazement.»
Mark 5.35-42

«And Peter answered Him and said, “Lord, if it is You, command me to come to You on the water.”
So He said, “Come.” And when Peter had come down out of the boat, he walked on the water to go to Jesus. But when he saw that the wind was boisterous, he was afraid; and beginning to sink he cried out, saying, “Lord, save me!”
And immediately Jesus stretched out His hand and caught him, and said to him, “O you of little faith, why did you doubt?”»
Matthew 14.28-31

«And in Lystra a certain man without strength in his feet was sitting, a cripple from his mother’s womb, who had never walked. This man heard Paul speaking. Paul, observing him intently and seeing that he had faith to be healed, said with a loud voice, “Stand up straight on your feet!” And he leaped and walked.» Acts 14.8-10

 «But when Paul had gathered a bundle of sticks and laid them on the fire, a viper came out because of the heat, and fastened on his hand. So when the natives saw the creature hanging from his hand, they said to one another, “No doubt this man is a murderer, whom, though he has escaped the sea, yet justice does not allow to live.” But he shook off the creature into the fire and suffered no harm. However, they were expecting that he would swell up or suddenly fall down dead. But after they had looked for a long time and saw no harm come to him, they changed their minds and said that he was a god.» Acts 28.3-6

«Then it happened, as He was coming near Jericho, that a certain blind man sat by the road begging. And hearing a multitude passing by, he asked what it meant. So they told him that Jesus of Nazareth was passing by. And he cried out, saying, “Jesus, Son of David, have mercy on me!”
Then those who went before warned him that he should be quiet; but he cried out all the more, “Son of David, have mercy on me!”
So Jesus stood still and commanded him to be brought to Him. And when he had come near, He asked him, saying, “What do you want Me to do for you?”
He said, “Lord, that I may receive my sight.”
Then Jesus said to him, “Receive your sight; your faith has made you well.” 43 And immediately he received his sight, and followed Him, glorifying God. And all the people, when they saw it, gave praise to God.»
Luke 18.35-43

«Keep your heart with all diligence,
For out of it spring the issues of life.
Put away from you a deceitful mouth,
And put perverse lips far from you.
Let your eyes look straight ahead,
And your eyelids look right before you.» Proverbs 4.23-25

«and make straight paths for your feet, so that what is lame may not be dislocated, but rather be healed.» Hebrews 12.13

 «So Jesus answered and said to them, “Have faith in God. For assuredly, I say to you, whoever says to this mountain, ‘Be removed and be cast into the sea,’ and does not doubt in his heart, but believes that those things he says will be done, he will have whatever he says. Therefore I say to you, whatever things you ask when you pray, believe that you receive them, and you will have them.« Jesus quoted in Mark 11.22-24