The Father -- Our Father -- Sent the Son

"And we have seen and do testify that the Father sent the Son to be the Saviour of the world." (1 John 4: 14)

God the Father did not send His Son, so that people would have to guess or wonder.

There were clear signs of Jesus' coming, preached in the Old Testament, fulfilled in the New Testament:

"10Of which salvation the prophets have inquired and searched diligently, who prophesied of the grace that should come unto you:" (1 Peter 1 : 10)

and

"We have also a more sure word of prophecy; whereunto ye do well that ye take heed, as unto a light that shineth in a dark place, until the day dawn, and the day star arise in your hearts:" (2 Peter 1: 19)

John emphasizes that our Father sent His Son. This salvation did not come to us from a distant God, or some deity who did not really care.

When Jesus rose from the dead, He announced the sonship which we can all receive:

"Jesus saith unto her, Touch me not; for I am not yet ascended to my Father: but go to my brethren, and say unto them, I ascend unto my Father, and your Father; and to my God, and your God." (John 20: 17)

Paul then preached to the city of Athens:

"For in him we live, and move, and have our being; as certain also of your own poets have said, For we are also his offspring. Forasmuch then as we are the offspring of God, we ought not to think that the Godhead is like unto gold, or silver, or stone, graven by art and man's device." (Acts 17: 28-29)

The Father sent His Son, so that we could be made the righteousness of God in Him (2 Corinthians 5: 21), that we would have the same status as His Son (Ephesians 2: 4-6), and that in every wise would be in Jesus' stead (1 John 4: 17)

The last part, I fear, most people miss the most. Jesus is not just the Savior for those who believe on Him. He is a Savior for all the world.

"1My little children, these things write I unto you, that ye sin not. And if any man sin, we have an advocate with the Father, Jesus Christ the righteous: 2And he is the propitiation for our sins: and not for ours only, but also for the sins of the whole world." (1 John 2: 1-2)

He has paid for all the sins of the world. In this life, we are all convicted of sin, the status of sin because of Adam (John 16: 8-9), but then the Holy Spirit convicts of His righteousness (John 16: 10)

Let us never forget that God loved the world, including you. This love, so great that He gave His Son even when the world did not care (Romans 5: 8), should magnify His love to us even more.