(Kersten, The Heidelberg Catechism in 52 Sermons, Vol.2, Part 12) Keeping the Lord's Day Holy Lord's Day 38 Psalter No. 420 st. 1 Read Matthew 11:11-30 Psalter No. 348 st. 1, 2, 3 Psalter No. 227 st. 1 Psalter No. 250 st. 1 & 5 Beloved, In the passage of Scripture which was read to you, the Lord invites those who labor and are heavy laden, saying, "Come unto Me, and I will give you rest." The Lord did not mean those who labor physically, or those who are laden with external difficulties. This is very clear from the sharp...