'Generation' in the Bible

His mercy lasts from generation to generation for those who fear him.

Jesus answered, "You unbelieving and perverted generation! How much longer must I be with you and put up with you? Bring your son here!"

Now as the crowds continued to throng around Jesus, he went on to say, "This people living today are an evil generation. It craves a sign, but no sign will be given to it except the sign of Jonah,

because just as Jonah became a sign to the people of Nineveh, so the Son of Man will be a sign to this generation.

from the blood of Abel to the blood of Zechariah, who died between the altar and the sanctuary. Yes, I tell you, it will be charged against this generation!

I tell all of you with certainty, this generation won't disappear until all these things take place.