Mark 8:12

12 He sighed deeply. He said, "Why do you people ask for a sign? What I'm about to tell you is true. No sign will be given to you."

Mark 8:12 Meaning and Commentary

Mark 8:12

And he sighed deeply in his Spirit
In his human soul; and which shows that he had one, and was subject to grief and sorrow, and all passions and infirmities, excepting sin. This deep sigh was on account of the hardness of their hearts, the malignity of their minds, and insincerity of their intentions; who had no view to come at truth by this inquiry, but to ensnare him:

and saith, why doth this generation seek after a sign?
when so many have been shown among them, and they will not believe:

verily I say unto you, there shall no sign be given to this
generation:
such as they desired; namely, one from heaven. The Evangelist Matthew adds, "but the sign of the Prophet Jonas"; (See Gill on Matthew 16:4), (See Gill on Matthew 12:40).

Mark 8:12 In-Context

10 Then he got into a boat with his disciples. He went to the area of Dalmanutha.

11 The Pharisees came and began to ask Jesus questions. They wanted to put him to the test. So they asked him for a miraculous sign from heaven.

12 He sighed deeply. He said, "Why do you people ask for a sign? What I'm about to tell you is true. No sign will be given to you."

13 Then he left them. He got back into the boat and crossed to the other side of the lake.

14 The disciples had forgotten to bring bread. They had only one loaf with them in the boat.