Here’s something more for John 15:11 thought and prayer. In Morning and Evening: Daily Readings, Charles Spurgeon (1834–1892) said this about the joy, and comfort, and life offered by Jesus:
Jesus said he would give you rest — have you not enjoyed the sweetest peace in him? He said you should have joy, and comfort, and life through believing in him — have you not received all these? . . . I have found Christ more sweet than his servants ever said he was.