internal override void Generate(Presentation presentation)
        {
            string passage = new PassageReader().GetBiblePassage(_verses);

            passage += $"\r\n\r\n{ _verses }";
            AddMainTextbox(GenerateSlide(presentation), passage, MessageSlide.MessageFont);
        }
        public override string Validate()
        {
            var passageReader = new PassageReader();

            if (string.IsNullOrEmpty(_verses))
            {
                return("A passage must be entered.");
            }
            else if (!passageReader.IsPassageValid(_verses))
            {
                return(_verses + " is not a valid passage");
            }
            else
            {
                return(base.Validate());
            }
        }