Scripture: "There shall be a performance" (Luke 1:45)."My words shall be fulfilled in their season" (their fixed appointed time) (Greek, Luke 1:20).
Matthew Henry says: "We must depend upon the performance of the promise, when all the ways leading up to it are shut up. 'For all the promises of God in him are yea (yes), and in him Amen (so be it), unto the glory of God by us.' (2 Cor. 1:20).