var text1 = "This is the first message";
        var text2 = "This is the second message";
        var text3 = "This is the third message";
        var text4 = "This is the fourth message";
    function toggleThem()
{
    window.setTimeout(function(){
            responsiveVoice.speak(text1);
        }, 200);
         window.setTimeout(function(){
            responsiveVoice.speak(text2);
        },2000 );
         window.setTimeout(function(){
            responsiveVoice.speak(text3);
        }, 2500);
}
toggleThem();