'Hard' in the Bible

"He also who had received the one talent came and said, 'Lord, I knew you that you are a hard man, reaping where you did not sow, and gathering where you did not scatter.

The disciples were amazed at his words. But Jesus answered again, "Children, how hard is it for those who trust in riches to enter into the Kingdom of God!

Jesus, seeing that he became very sad, said, "How hard it is for those who have riches to enter into the Kingdom of God!

Therefore many of his disciples, when they heard this, said, "This is a hard saying! Who can listen to it?"

When we had all fallen to the earth, I heard a voice saying to me in the Hebrew language, 'Saul, Saul, why are you persecuting me? It is hard for you to kick against the goads.'

About him we have many words to say, and hard to interpret, seeing you have become dull of hearing.

"If it is hard for the righteous to be saved, what will happen to the ungodly and the sinner?"

as also in all of his letters, speaking in them of these things. In those, there are some things that are hard to understand, which the ignorant and unsettled twist, as they also do to the other Scriptures, to their own destruction.

to execute judgment on all, and to convict all the ungodly of all their works of ungodliness which they have done in an ungodly way, and of all the hard things which ungodly sinners have spoken against him."