Saturday, about midnight
And with that his wife replied , I fear , said she , that they live in hope that some will come to relieve them , or that they have picklocks about them , by the means of which they hope to escape . And sayest thou so , my dear ? said the Giant ; I will , therefore , search them in the morning . -LCB- 292 -RCB- Well , on Saturday , about midnight , they began to pray , and continued in prayer till almost break of day . Now a little before it was day , good Christian , as one half amazed , brake out in passionate speech : What a fool , quoth he , am I , thus to lie in a stinking Dungeon , when I may as well walk at liberty . I have a Key in my bosom called Promise , that will , I am persuaded , open any Lock in Doubting Castle . Then said Hopeful , That 's good news ; good Brother pluck it out of thy bosom and try .