The second coming of Christ! Just thinking about it makes your heart sing doesn’t it? Douglas Sean O'Donnell is the senior vice president of Bible Editorial at Crossway Publishing. He stopped by and helped us take a look at five things the Bible helps us understand about this momentous event! He also recently wrote the expository reflections on the Gospel of Mark and answered several questions people have about the Gospel from John Mark's vantage point. 

https://www.crossway.org/articles/5-things-we-know-about-christs-second-coming/ 

https://www.crossway.org/books/expository-reflections-on-the-gospels-volume-3-hc/