First, We must understand that God does not just have love, He is love.
This is the very essence of His being and nature.
 He that loveth not knoweth not God; for God is love.
 And we have known and believed the love that God hath to us. God is love; and he that dwelleth in love dwelleth in God, and God in him.
God did not “become” love. He is.
Many erroneously think that the coming of Jesus changed the disposition of God the Father towards humanity. But that’s not so.
It was the Father’s love that initiated and executed the coming of the Son, with all that was accomplished in His coming. Romans 5:8 But God commendeth his love toward us, in that, while we were yet sinners, Christ died for us.
The word “commendeth” means to exhibit, to introduce. The coming of Christ was both an Introduction and Exhibition of the Father’s love towards humanity. It was a demonstration of the Father’s nature and character.
In Christ, God unveiled Himself to us. He finally got the chance to introduce Himself for who He truly is.
 God, who at sundry times and in divers manners spake in time past unto the fathers by the prophets,
 Hath in these last days spoken unto us by his Son, whom he hath appointed heir of all things, by whom also he made the worlds;
 Who being the brightness of his glory, and the express image of his person, and upholding all things by the word of his power, when he had by himself purged our sins, sat down on the right hand of the Majesty on high;
You see, previous generations before Christ got different portions of the truth concerning the nature and character of God. Those were types and shadows, most of which did not give a clear picture of God, but rather misrepresented Him.
However, in the coming of Christ We see the Father clearly. He is Love! He is full of Grace and Truth. Jesus expressed the Father’s nature by purging our sins — He did it Himself.
This love is to be known, not felt.
Eph 3:19 And to know the love of Christ, which passeth knowledge, that ye might be filled with all the fulness of God.
The word ‘know’ here means to Understand and be assured of something, through an undeniable experience of it.
This knowledge will no doubt bring feelings from time to time, but it is Greater than feelings!
This is why we can also say like John “We have known and believed the Love that God has for us.”
Even in the face of challenges, We know and we are sure that we are loved!
 Who shall separate us from the love of Christ? shall tribulation, or distress, or persecution, or famine, or nakedness, or peril, or sword?
 Nay, in all these things we are more than conquerors through him that loved us.
We are sure of Victory in all circumstances because We are sure of His love! Lean to keep yourself in the love of God.
“Keep yourselves in the love of God, looking for the mercy of our Lord Jesus Christ unto eternal life.” Jud 1:21 (KJV)