How does The Love of God gets in us and then flows out through us?!

Scripture References
Rom. 5:5
1 Thess. 3:12
1 Thess. 4:9
2 Thess. 3:5
1 Tim. 1:14
1 Jn. 4:7
Jude 1:20-21
Rev. 2:4
Jn. 15: 9-10

Abide in Greek is menō- to stay , continue, dwell, be present, remain, stand, tarry

Gal. 5:6

The Greek word for work is energeō -to be active, efficient: -  (be) effectual (fervent), be mighty in, show itself.

1 Cor. 13:2
2 Thess. 1:3
Phil. 1:9
1 Jn. 4:17
Eph. 4:15-16
Jn. 15:4-5
Col. 2:2
Col. 3:14
1 Pet. 4:8

The root word for cover in Greek is kruptō -to conceal (properly by covering): - hide , keep secret, 

Col. 3:13
2 Cor. 5:14

Contrains in the Greek is sunechō-. to hold together, that is, to compel,  hold, keep in, be taken with.

1 Jn. 13:16
James 4:1-3
Zech. 4:6
1 Jn. 4:16
Rom. 12:2
1 Cor. 13:4-7
Phil. 2:3-6
Jn. 13:35
Eph. 3:16-21