This Christmas I am convicted by my own selfishness.    As I think of Jesus’s gift—God laying aside heaven and the worship due him to come to earth for us—I realize that my gift-giving bears little resemblance to his. Jesus emptied self while much of my giving costs me little. Apart from tangible family gifts, I do give time and money to our church and ministries throughout the year, but not to the extent that Jesus did—thinking of others before himself.   I am faced with this question: am I giving anything that really costs me anything precious and valuable?    I give money to God’s kingdom work, but I…