The world is spiritually ignorant and blind (15:21). If you had asked the religious leaders in Jerusalem if they knew the God they were seeking to defend, they would have said, “Of course we know Him! Israel has known the true God for centuries!” But Jesus said that they did not know the Father and therefore, they could not know the Son (see John 16:3). The religious leaders knew a great deal about Jehovah God and could quote chapter and verse to defend their doctrines, but they did not personally know God.

This was not a new theme for our Lord to discuss, because He had mentioned it before to the religious leaders who opposed Him. “Ye neither know me, nor my Father; if ye had known me, ye should have known my Father also” (John 8:19). “Yet ye have not known him; but I know him” (John 8:55). Jesus had taught them the Word and had demonstrated His deity in miraculous signs and a godly walk, yet the religious leaders of the nation were blind to His identity: “The world knew him not” (John 1:10).

The religious world today claims to know God, but it does not want to bow the knee to Jesus Christ as the Son of God and the only Savior of the world. Satan has blinded their minds (2 Cor. 4:3-4), and sin has blinded their hearts (Eph. 4:17-19). Like Saul of Tarsus, they are so convinced that their “religion” and “righteousness” are satisfactory that in the name of that religion they persecute God’s people!