'Matters' in the Bible

It so happened that when our adversaries heard that we were aware of these matters, God frustrated their intentions. Then all of us returned to the wall, each to his own work.

So all the people departed to eat and drink and to share their food with others and to enjoy tremendous joy, for they had gained insight in the matters that had been made known to them.

And Pethahiah the son of Meshezabeel, of the children of Zerah the son of Judah, was at the king's hand in all matters concerning the people.

Didn’t King Solomon of Israel sin in matters like this? There was not a king like him among many nations. He was loved by his God and God made him king over all Israel, yet foreign women drew him into sin.