1) Asserts emphatically 2) Avows 3) Blasphemes 4) Has no doubt whatever 5) Makes an oath 6) Prepares to testify 7) Promises 8) Reacts to a hammered thumb 9) Says on a stack of Bibles 10) Says with a raised hand 11) Speaks indelicately 12) Takes an oath 13) Takes oath 14) Talks dirty 15) Uses indelicate language 1) Attests 2) Avers 3) Avows 4) Curses 5) Cusses 6) Vows