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 6:66
From this time many of his disciples went away, and walked no more with Him.
Matthew 11:6
and happy is the man who shall not be offended at any thing in me.
John 6:41-42
The Jews then murmured about Him; because He said, I am the bread that came down from heaven.
John 8:31
Therefore said Jesus to the Jews that believed on Him, If ye continue in my word, ye are indeed my disciples.
John 8:43
And why do ye not understand my language, but because ye cannot bear my doctrine?
Hebrews 5:11
Concerning whom we have much to say and difficult to be explained, since ye are become dull of hearing.
2 Peter 3:16
as also in all his epistles, speaking in them of these things: in which are some things hard to be understood, which the illiterate and unstable wrest, as they do also the other scriptures, to their own destruction.