1;  He declares the singular love of God towards us, in making
     us his sons;
  3;  who therefore ought obediently to keep his commandments;
 11;  as also to love one another as brethren.

 * what.
  4:9,10  2Sa 7:19  Ps 31:19  36:7-9  89:1,2  Joh 3:16  Ro 5:8  8:32 
  Eph 2:4,5  3:18,19 
 * that.
  Jer 3:19  Ho 1:10  Joh 1:12  Ro 8:14-17,21  9:25,26  2Co 6:18 
  Ga 3:26,29  4:5,6  Re 21:7 
 * the world.
  Joh 15:18,19  16:3  17:25  Col 3:3