NT-GOSPEL.filter - rsv understood:

rsv@Matthew:13:51 @ "Have you understood all this?" They said to him, "Yes."

rsv@Matthew:16:12 @ Then they understood that he did not tell them to beware of the leaven of bread, but of the teaching of the Pharisees and Sad'ducees.

rsv@Matthew:17:13 @ Then the disciples understood that he was speaking to them of John the Baptist.

rsv@Luke:18:34 @ But they understood none of these things; this saying was hid from them, and they did not grasp what was said.