וְֽתִגְזַר־א֭וֹמֶר וְיָ֣קָם לָ֑ךְ וְעַל־דְּ֝רָכֶ֗יךָ נָ֣גַֽהּ אֽוֹר׃
Thou shalt also decree a thing, and it shall be established unto thee, And light shall shine upon thy ways.
Sefer Chasidim
A person should not utter anything from his mouth unless he knows that this is favorable to his Creator, and if this is so: "You will decide and this will be granted you" (Iyov 22:28)