Love in 1 John

Love seems to be a big theme in 1 John. He uses the word 43 times in just 5 chapters. To understand the book, we need to understand what love is. What is this love John is talking about. How do we know we have this kind of love? What are the characteristics of it? Are there more than 1 kind of love in this book? What are the Greek forms of love used in this book?

Love in the Bible... (taken from English)
-- Gen 22:2
-- Ex. 20:6, 34:6
-- Lv. 19:18
-- Num. 14:18
-- Dt. 5:10, 6:5
-- Jos. 22:5
-- 2 Chr. 5:13
-- Ps. 31:16, 31:23, 36:5, 51:1, 100:5, 103:8, 136:1, 145:8
-- Prv. 9:8, 10:12, 20:28
-- Ecc 9:9
-- Sg. 2:4, 8:7
-- Is 61:8, 63:9
-- Jer. 31:3, 33:11
-- Dan 9:4
-- Hos 11:4, 12:6
-- Am 5:15
-- Mi 3:2, 6:8
-- Mtt. 5:44, 22:37
-- Lk 6:32
-- Jn 11:3, 13:34, 14:15, 15:9, 15:13, 15:17, 21:15
-- Romans 5:5. 8:28, 8:35, 12:9, 12:10, 13:10, 15:30
-- 1 Cor 2:9, 8:1, 13:1, 13:4, 13:7,13:8, 13:13, 16:14
-- 2 Cor 5:14
-- Gal 5:6, 5:22
-- Eph 1:4, 2:4, 3:17, 4:15, 5:2, 5:25, 5:28
-- Phil 1:9, 2:1, 4:1
-- Col 3:14
-- 1 Thes 4:9, 5:8
-- 2 Thes 3:5
-- 1 Tm 4:12, 6:10, 6:11
-- 2 Tim 1:7, 2:22, 3:10
-- Heb 10:24, 13:1
-- Jas 1:12, 2:8
-- 1 Pet. 1:22, 2:17, 4:8
-- 2 Pet 1:7
-- 1 Jn 2:15, 3:1 3:10, 3:11, 3:14, 3:16, 3:18, 3:23, 4:7-11, 4:16, 4:18, 4:19, 4:21, 5:2-3
-- 2 Jn 1:5-6
-- Jde 1:12, 1:21
-- Rev 2:4, 2:19

Loved in the Bible... (English)
-- Dt 23:5
-- Ps 45:7
-- Jer 31:3
-- Jn 3:16, 13:34, 15:9, 16:27
-- Rm 8:37
-- Gal 2:20
-- Eph 2:4, 5:2, 5:25
-- 2 Thes 2:16
-- 1 Jn 4:10, 4:19

Loves in the Bible... (English)
-- Ps 33:5, 37:28,
-- Pr 3:12, 12:1, 17:17,
-- Eccl 5:10
-- Mt 10:37
-- Lk 7:47
-- Jn 14:21
-- Rm 13:8
-- 1 Cor 8:3
-- 2 Cor 9:7
-- Eph 5:28
-- Heb 12:6
-- 1 Jn 2:10, 2:15, 4:7, 4:21, 5:1
-- Rv 1:5

Different kind of loves... (English)