Eternal encouragement and good hope

2 Thessalonians 2:13-17
Because God chose you as first fruits to be saved through the sanctifying work of the Spirit and through belief in the truth.
Stand firm and hold fast to the teachings we passed on to you.
May our Lord Jesus Christ himself and God our Father, who loved us and by his grace gave us eternal encouragement and good hope, encourage your hearts and strengthen you in every good deed and word.
Paul turns with tremendous contrast, to the Thessalonians. They were chosen and called by God - and they responded gladly to the truth. They will share in the glory of Jesus himself.
Why?
We may be saved is through the sanctifying work of the Spirit and through belief in the truth. So it the work of God and our chosen. Human have to bear his own responsibility to make decision.
Stand firm and hold fast to the teachings of Bible and reminder of the Spirit.
By God's grace we may have eternal encouragement and good hope. Strengthen us in every good deed and word. So we do it and say word from our heart for God is with us.
How?
No rely on me but the grace God gave us to do good thing and say word.