“On your walls, O Jerusalem I have set watchmen
All the day and all the night they shall never be silent
You who put the Lord in remembrance take no rest
And give him no rest until He establishes Jerusalem and makes it a praise in the earth.” Isaiah 62:6-7
God puts those who pray on the walls of Jerusalem to pray continually.
To put God in remembrance and to give Him no rest. Until He brings blessing to His city.
This reminds me of Luke 18 and persistent widow, and the friend who comes at midnight in Luke 11.
Nothing fancy to interpret here. Pray. Pray continually. Put God in remembrance knowing that if you are praying, he has appointed you to do so.