'Expounded' in the Bible

But without a parable spake he not unto them: and when they were alone, he expounded all things to his disciples.

And beginning at Moses and all the prophets, he expounded unto them in all the scriptures the things concerning himself.

But Peter rehearsed the matter from the beginning, and expounded it by order unto them, saying,

And he began to speak boldly in the synagogue: whom when Aquila and Priscilla had heard, they took him unto them, and expounded unto him the way of God more perfectly.

And when they had appointed him a day, there came many to him into his lodging; to whom he expounded and testified the kingdom of God, persuading them concerning Jesus, both out of the law of Moses, and out of the prophets, from morning till evening.