If you do put the effort into it, it is extremely easy to memorize bible verses. I memorized John 8:58, 11:25, 14:6, and 10:30. I can recite them off the top of my head easily. The key is to allow the Holy Spirit to work with you, so you can accomplish great things like this, for the Kingdom of God. I'm gonna still memorize more verses! John's Gospel is a good start for me, but you can start anywhere!