If we are Christians we are not of this world. Our citizenship is in heaven. We are foreigners here. It is our duty to live the heavenly life in the midst of this earth’s circumstances and conditions. We are here for our Master, to do His work, to reveal Him to men, to do in our little measure the things He would do if He were here in our place. We are therefore to be in the world, as Jesus was in it. He maintained the heavenly life, without spot, in the midst of all the sin there was about Him. The world made no impression on His holiness, His purity.