Joh 13:34 A new commandment I give unto you, That ye love one another; as I have loved you, that ye also love one another.
Some commandments are harder than others. This command is impossible in the human sense, that is, in the flesh. This command can only be fulfilled through the indwelling of God's Holy Spirit. That is the only way we Christians can participate in this type of love, the AGAPE love of God.
Mat 19:26 But Jesus beheld them, and said unto them, With men this is impossible; but with God all things are possible.