When Nehemiah came back to Jerusalem to rebuild its broken walls, he was attacked from within and without. He won the victory by praying and watching. We are to be watching for His return. The spirit indeed is willing, but the flesh is weak . We know Peter went to sleep when he should have been praying.
Prayer is war.
It is a battle. Satan uses diversionary tactics. We are to remain in prayer about specific problems. Many times we quit before we get the answer. The early church prayed that way and saw Peter released from prison.