KJV:
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.
NASB:
We have come to know and have believed the love which God has for us. God is love, and the one who abides in love abides in God, and God abides in him.
KJV:
Herein is our love made perfect, that we may have boldness in the day of judgment: because as he is, so are we in this world.
NASB:
By this, love is perfected with us, so that we may have confidence in the day of judgment; because as He is, so also are we in this world.
KJV:
There is no fear in love; but perfect love casteth out fear: because fear hath torment. He that feareth is not made perfect in love.
NASB:
There is no fear in love; but perfect love casts out fear, because fear involves punishment, and the one who fears is not perfected in love.
KJV:
For this is the love of God, that we keep his commandments: and his commandments are not grievous.
NASB:
For this is the love of God, that we keep His commandments; and His commandments are not burdensome.
KJV:
Grace be with you, mercy, and peace, from God the Father, and from the Lord Jesus Christ, the Son of the Father, in truth and love.
NASB:
Grace, mercy and peace will be with us, from God the Father and from Jesus Christ, the Son of the Father, in truth and love.
KJV:
And this is love, that we walk after his commandments. This is the commandment, That, as ye have heard from the beginning, ye should walk in it.
NASB:
And this is love, that we walk according to His commandments. This is the commandment, just as you have heard from the beginning, that you should walk in it.