Acts 17:20
For thou bringest strange things to our ears; we would therefore know what these things mean.
1 Peter 4:4
in which they think it strange that ye run not with them into the same excess of riot, and therefore speak evil of you:
Matthew 19:23-25
Then said Jesus to his disciples, Verily I tell you, that a rich man shall with difficulty enter into the kingdom of heaven:
Mark 9:10
And they laid hold on that expression, querying among themselves, what means the rising from the dead?
Mark 10:24-26
And the disciples were astonished at his words. But Jesus repeating it, saith unto them, Children, how hard is it for them, that trust in riches, to enter into the kingdom of God!
John 6:60
Many therefore of his disciples, when they heard Him, said, This discourse is hard to be understood, who can take it in?
John 7:35-36
Then said the Jews among themselves, Whither will He go, that we shall not find Him? will He go to them that are dispersed among the Gentiles, and teach the Gentiles?
Acts 2:12
And they were all amazed and in doubt, saying one to another, What can this mean?
Acts 10:17
Now while Peter was doubting in himself what might be the meaning of the vision which he had seen, behold the men that were sent from Cornelius, having enquired for Simon's house, stood at the door;
1 Corinthians 1:18
For the doctrine of the cross is to them, that perish, foolishness: but to us, who are saved, it is the power of God.
1 Corinthians 1:23
to the Jews indeed a stumbling-block, and to the Greeks foolishness; but to them that are called,
1 Corinthians 2:14
But the natural man receiveth not the things of the Spirit of God: for they are foolishness to him; and he cannot understand them, because they are spiritually discerned.
Hebrews 5:11
Concerning whom we have much to say and difficult to be explained, since ye are become dull of hearing.