Reading 1 John Chapter 4, Young's Literal Translation
Your faith is shown by your works. It is by what you do that you show to God and to the world around you whether you have the presence of God, His Spirit, in you:
(1) Love one another
1 John 4:7 " . . . every one who is loving, of God he hath been begotten, and doth know God;"
1 John 4: 12, 13 " . . . God no one hath ever seen; if we may love one another, God in us doth remain, and His love is having been perfected in us; in this we know that in Him we do remain, and He in us, because of His Spirit He hath given us"
1 John 4: 16 "and we -- we have known and believed the love, that God hath in us; God is love, and he who is remaining in the love, in God he doth remain, and God in him"
1 John 4: 20,21 "if any one may say -- `I love God,` and his brother he may hate, a liar he is; for he who is not loving his brother whom he hath seen, God -- whom he hath not seen -- how is he able to love? and this is the command we have from Him, that he who is loving God, may also love his brother.
(2) Confess, testify
1 John 4: 14-15 "And we -- we have seen and do testify, that the Father hath sent the Son -- Saviour of the world; whoever may confess that Jesus is the Son of God, God in him doth remain, and he in God;"