'Really' in the Bible

These words of Ish-bosheth really angered Abner and he said, "Am I the head of a dog that belongs to Judah? This very day I am demonstrating loyalty to the house of Saul your father and to his relatives and his friends! I have not betrayed you into the hand of David. Yet you have accused me of sinning with this woman today!

"Go, tell my servant David: 'This is what the Lord says: Do you really intend to build a house for me to live in?

the Ammonite officials said to their lord Hanun, "Do you really think David is trying to honor your father by sending these messengers to express his sympathy? No, David has sent his servants to you to get information about the city and spy on it so they can overthrow it!"

For I made this vow when I was living in Geshur in Aram: 'If the Lord really does allow me to return to Jerusalem, I will serve the Lord.'"