Mark 7:32-35 (NKJV)
"Then they brought to Him one who was deaf and had an impediment in his speech, and they begged Him to put His hand on him. And He took him aside from the multitude, and put His fingers in his ears, and He spat and touched his tongue. Then, looking up to heaven, He sighed, and said to him, Ephphatha, that is, Be opened. Immediately his ears were opened, and the impediment of his tongue was loosed, and he spoke plainly."

Mark 5:35-42
"While He 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 6:5-6 (AMP)
"And He was not able to do even one work of power there, except that He laid His hands on a few sickly people [and] cured them. And He marveled because of their unbelief (their lack of faith in Him). And He went about among the surrounding villages and continued teaching."

Marvel: One that evokes Strong surprise; astonishment, A cause of amazement

Mark 16:14 (NKJV)
"Later He appeared to the eleven as they sat at the table; and He rebuked their unbelief and hardness of heart, because they did not believe those who had seen Him after He had risen."