Psalm 62:5 My soul, wait thou only upon God; for my expectation is from him.
When things get tough and bad things threaten us, we are encouraged to be patient. We get tempted to give up on God too soon and turn to self or worldly things for help and comfort. Instead, our response to present need and impending trouble is to wait expectantly for the Lord, and turn to Him first and only.
Faith sees us through the waiting time, for “Faith is the assurance of things hoped for, the conviction of things not seen,” the present possession of what we we cannot see that we already have. Faith expects God to act and do great things for us, even if our physical eyes do not yet see it. David and the OT believers could not yet see the fulfillment of the promised Messiah, but God-given faith expects the Promise as present and real and effective.
So it is with us. Although the historical Christ has come, we still wait expectantly for His return in the unseen future. Additionally, we expect Him to enter in to our present lives and answer our prayers to save us. He will come. So we wait.