'Expound' in the Bible

East of the Jordan River, in the land of Moab, Moses began to expound this Law:

I will raise up a prophet like you from among their relatives, and I will place my words in his mouth so that he may expound everything that I have commanded to them.

And he said unto them, Out of the eater came forth meat, and out of the strong came forth sweetness. And they could not in three days expound the riddle.

I will focus my attention on a proverb; I will use the harp to expound my riddle.

Then, having dismissed the crowds, he went into the house; and his disciples came to him, saying, Expound to us the parable of the darnel of the field.

And Peter answering said to him, Expound to us this parable.

And Peter having begun, did expound to them in order saying,

this one also began to speak boldly in the synagogue, and Aquilas and Priscilla having heard of him, took him to them, and did more exactly expound to him the way of God,