John 14:27 Peace I leave with you; my peace I give you. I do not give to you as the world gives. Do not let your hearts be troubled and do not be afraid.
Jesus was telling the disciples they would have a whole lot more than a man come to live with them. Although He was about to give His life on the cross, He would be able to leave behind His love and peace which would go further than just words.
The world can promise many things and can even deliver on many things, but nothing will come close to the peace we have in Jesus Christ; a peace which goes beyond our mortal understanding!