"Be on guard so that your hearts are not weighed down with dissipation and drunkenness and the worries of this life, and that day catch you unexpectedly" (Luke 31:34)
From the blessed Dr. Luther...
"God in his great mercy does not will that the day of judgment should suddenly overtake us, and so, out of grace, he honors us with a merciful warning. God causes his Word to be preached to us, call us to repentance, and offers us in Christ forgiveness of all ours sins. God gives a sure promise that pain and guilt shall be abolished if we believe in his Son. He commands us to continue in our calling and to do our work well. If we obey him in doing so, he in no way grudges us food and drink or that we are happy and of good cheer. For eat and drink we must if we are to live on this earth. But we must not be forgetful of God and the life to come. Is not this a good and holy God, in that he looks on us with so fatherly a love? He ever speaks to us like a father to his children, and he says, 'Dear children, repent; believe in my Son whom I have sent to you. Be holy and obedient, and faithful servants in your work; then eat and drink and use the earthly good with which I have blessed you. But take care that you use the world and its passing goods like a man who is awaiting the last trumpet; so that when it peals and when the last thunders resound you are prepared and ready, walking in holy ways and with a godly spirit. If you live like that, you are in no danger" (sermon of Martin Luther from the year 1545)
Purchase this little book of meditation HERE.