Today is “Maundy Thursday.” The word “Maundy” comes from the Latin word for “command” and is the name given to the Thursday of Jesus’ Passion Week. This is the day he celebrated the Passover with his disciples, instituting what we know as “The Lord’s Supper” or “Communion.” It is also the day that Jesus washed his disciple’s feet; an act of humility and service that Jesus did as an example for all his disciples to emulate.
Each of these events leaves us with a command from Jesus. From the Lord’s Supper, the command of Jesus is, “This is my body, which is given for you. Do this in remembrance of me.” (Luke 22:19) While there are several great truths that can be drawn from communion, the primary truth is that He sacrificed himself for us. Without this sacrifice, we are left on our own to stand before God and fall terribly short. With this sacrifice, we have a sure and right standing before God to the point of being legally and affectionately called sons and daughters. This we must never forget.
After washing his disciple’s feet, Jesus left them with a new commandment, “that we love one another.” (John 13:34) Jesus must have been very aware of how lose and broad and vague we can be when it comes to defining our love for one another and so he gives us an example to make sure we’re on the same page; he physically washes their feet. It was clearly a very uncomfortable thing to have done to you by someone who's rank is above you (see Peter’s objection in John 13:8) which only helped make the point; “you also should do just as I have done to you.” The act was symbolic and meant to represent 1,001 various acts of humbly serving one another and make for a heart attitude of sacrificial love that all followers of Jesus are commanded to maintain.
Do you understand what I have done to you? Two events, two commands: never for get that I sacrificed myself for you, and live sacrificially for one another. In other words, "I have loved you. You must love one another."