My grandpa was a carpenter for the North East Oklahoma railroad. Their inside joke was that they worked for NEO (any old) railroad.
Since he was a carpenter he had carpenter stuff in his garage. I once found a bucket full of rusty old nails in there. They were probably new when he put them there. But when I found them he had been retired for quite awhile and any time he had he spent fishing so the nails no doubt stayed in that bucket until he passed and someone else cleaned out his garage.
Nails forged from iron will remain iron for as long as this world exists, if they are protected. But exposure to corrosive elements and iron transforms into rust which is corrupted iron; iron which has no strength and cannot be used for the nail’s intended purpose.
Evil Can’t Exist Without Good
Evil can be compared to rust on an iron nail. Just as iron rust can’t exist without iron so the corruption of evil can’t exist without good. We find in Genesis 1:31 (ESV), “God saw all that he had made, and behold, it was very good….“. Only when God’s good came could evil come forth and cause corruption.
As I mentioned previously, a rusty iron has no strength. Similarly, evil in a person steals their moral strength, making them weak and unable to do what is right. Also, a rusty nail can’t be used for its designed purpose. So, too, a person corrupted by evil is unable to fulfill God’s purpose for them.
No Fear of Rust
Yes, corruption is active all around us but as Christians we are as protected iron for we have this promise in Galatians 1:3-5 (ESV): “Grace to you and peace from God our Father and the Lord Jesus Christ, who gave himself for our sins to deliver us from the present evil age, according to the will of our God and Father, to whom be the glory forever and ever. Amen.”
Jesus has immersed us in grace and peace, sealing us with the Holy Spirit. While we live in this corrosive world we need not be afraid of its rust.