Just as He picked us out to be part of Hashem's Bechirim (Chosen Ones) before the hivvased tevel (foundation of the world), that we should be Kadoshim and without mum (defect, VAYIKRA 22:20) before Him in ahavah: [VAYIKRA 11:44; 20:7; SHMUEL BAIS 22:24; TEHILLIM 15:2]