The greatest gifts are presence for sure. The best thing of all is that it's free. You can't pay for a person presence, they are already there with you for free. You don't need to buy a person's love. They love you for who you are. It's the same thing with Jesus dying for us on the Cross. He gave us His presence in front of everyone who saw Him crucified. His disciples were afraid so they fled. But after Jesus rose from the dead, they become strong believers in Him. "I am the good shepherd. The good shepherd lays down his life for the sheep." John 10:11