'Hard' in the Bible

for this people's heart has become dull, and their ears are hard of hearing. They have shut their eyes so that they might not see with their eyes, and hear with their ears, and understand with their heart and turn, and I would heal them.'

Then Jesus told his disciples, "I tell all of you with certainty, it will be hard for a rich person to get into the kingdom from heaven.

"Then the one who had received one talent came forward and said, "Master, I knew that you were a hard man, harvesting where you haven't planted and gathering where you haven't scattered any seed.