“Until prayer” is a state of continuity or perseverance in prayer and supplication for specific request to be granted by God.
The first lesson you will find in Luke 11:5–10; our Lord Jesus Christ Himself is the speaker:
“And he said unto them, Which of you shall have a friend, and shall go unto him at midnight, and say unto him, Friend, lend me three loaves;“For a friend of mine in his journey is come to me, and I have nothing to set before him? And he from within shall answer and say, Trouble me not: the door is now shut, and my children are with me in bed; I cannot rise and give thee.“I say unto you, Though he will not rise and give him, because he is his friend, yet because of his importunity he will rise and give him as many as he needeth.“And I say unto you, Ask, and it shall be given you; seek, and ye shall find; knock, and it shall be opened unto you. For every one that asketh receiveth; and he that seeketh findeth; and to him that knocketh it shall be opened.“ (KJV)
Numerous examples abound in the scripture,but we will take some examples of those who continued in prayer “until” God sent a word to them.
Elijah continued in prayer for the return of rain to the land of Israel until God gave a little cloud arising out of the sea, like a man’s hand. As soon as that happened, he knew he had gotten through (1Kings. 18:41-46). Again at Mount Camel contest, Elijah explained that he did all “at thy word” and what ended the meeting was the fire God sent from heaven to lick up the offering (1 Kings. 18:20-40).
King Jehoshaphat’s led prayer and fasting was through as soon as they heard a word from God. Faith rose in them to sing and dance in a most difficult situation (2 Chro. 20:3-25).
Joshua continued in prayer until a word from God halted the praying for sin to be judged in order for conquest to continue (Joshua 7:6-26).
Daniel continued in prayer for 21 days until a word from God was brought to him by an angel (Dan. 9:10, 10-21).
The disciples continued until Peter who was kept in prison, awaiting execution, was released to them by an angel (Acts 12:1-10).
Anna continued day and night in prayer until she saw the Lord Jesus Christ (Lk. 2:36-38). Just to mention a few.
May the LORD grant you grace to continue in your quest for righteousness until the righteousness of God is imputed on you in Jesus name Amen.