John 14:5
Thomas said to Him, Lord, we do not know where You go, and how can we know the way?
John 11:16
Then Thomas (he being called Twin) said to his fellow disciples, Let us also go, that we may die with Him.
Mark 8:17-18
And knowing it, Jesus said to them, Why do you reason that it is because you have no loaves? Do you not yet perceive nor understand? Have you still hardened your heart?
Mark 9:19
He answered him and said, O faithless generation, how long shall I be with you? How long shall I bear with you? Bring him to Me!
Luke 24:25
And He said to them, O fools and slow of heart to believe all things that the prophets spoke!
John 15:12
This is My commandment, that you love one another as I have loved you.
John 20:25-28
The other disciples therefore said to him, We have seen the Lord. But he said to them, Unless I shall see the print of the nails in His hands, and put my finger into the print of the nails, and thrust my hand into His side, I will not believe.
Hebrews 5:11-12
of whom we have much to say, and hard to be explained since you are dull of hearing.