'Enter' in the Bible

Nicodemus said to him, "How can a man be born when he is old? He cannot enter his mother's womb and be born a second time, can he?"

Jesus answered, "I tell you the solemn truth, unless a person is born of water and spirit, he cannot enter the kingdom of God.

"I tell you the solemn truth, the one who does not enter the sheepfold by the door, but climbs in some other way, is a thief and a robber.