When some people hear "God will do all that He has promised.", their mind interprets it to mean "God will do everything I want when and how I want it." I have even heard it taught that God "has" to do so-and-so because of the way they interpret certain verses.
I hurt for those who have been damaged by erroneous teaching. God is loving and faithful, however, He--in love--will not allow us to impose our will on Him in such a manner.
God will do all that He has promised; that is indisputable and absolute. It lies with us to understand what He has promised and bring our lives into agreement with it.
In the fifth year of Joram son of Ahab king of Israel, when Jehoshaphat was king of Judah, Jehoram son of Jehoshaphat began his reign as king of Judah. He was thirty-two years old when he became king, and he reigned in Jerusalem eight years. He walked in the ways of the kings of Israel, as the house of Ahab had done, for he married a daughter of Ahab. He did evil in the eyes of the LORD.
Nevertheless, for the sake of his servant David, the LORD was not willing to destroy Judah. He had promised to maintain a lamp for David and his descendants forever. (2 Ki 8:16-19 NIV)