New Defender's Study Bible Notes
2:2 propitiation. See also I John 4:10. “Propitiation” in this context means “sacrifice” or “satisfaction.”
2:2 sins of the whole world. The value of Christ’s blood was infinite, sufficient to cover all the sins of all the men and women of every age of history. The fact that it is efficacious unto eternal salvation only for the elect (a term that includes all and only those who believe on Him) is no argument that its value was thereby limited.