on the stand
(law) testifying at a trial; speaking as a witness during a court case
A community of Jesus which seeks to hide itself has ceased to follow him. "Neither do men light a lamp and put it under a bushel, but on the stand.” ... The bushel may be the fear of men, or perhaps deliberate conformity to the world for some ulterior motive. Dietrich Bonhoeffer
The fate of Africans in the cities of the nation rests on the stand we take against this tyrannical action of the government. As leaders we shall do all in our power to consolidate the country to oppose the carrying out of this outrageous tyrannical scheme. Albert Lutuli
There was a loud cough from the man on the stand. I replaced My Magic Mirror carefully on his tray, gave him a cheesy smile, and went my way. Jonathan Stroud