What happens when we as Christians are tempted to sin? How are they we to turn away from temptations, say no to ungodliness, and stay on the path of life? The answer to this question lies in Ephesians 6:14 where Christians are told to put on the breastplate of righteousness. In this sermon on Ephesians 6:14 titled “Citizens of Heaven,” Dr. Lloyd-Jones explains how the breastplate of righteousness is our only defense against temptation, ungodliness, and the condemnation of the devil. He points out that it is ungodliness which leads to unrighteousness, leading to the fact that the only way to resist ungodliness is to put on the righteousness which has been imputed and imparted to us by God. It is this breastplate of righteousness that reminds the us who and what we are in Christ: sons and daughters of God. We have been sanctified in Christ and our citizenship no longer lies in the temporary flesh of the world, but in the spiritual realm of heaven that will last forever. Looking to Jesus as our example, we as Christians can face temptations by standing our ground, arming ourselves with the breastplate of righteousness, and remembering the truth it speaks to us.

http://www.mljtrust.org/sermons/citizens-of-heaven/