This is going to be fast and this passage (Romans 8:26-30) has a lot in it so I may need to break it up. Although the suffering is nothing compared to the glory to be revealed, we still need help through this time on earth. The Spirit is our help "in our weakness." The Spirit provides direction in what to pray, He intercedes on our behalf with God, and works with our conscience to help us discern. "...the Spirit intercedes for the saints according to the will of God."
All things will work for good for those who love God, "for those who are called according to His purpose." Again Paul talks about calling, just as he did in Ephesians. Paul lays out the process here. Verse 29-30 "For those whom He foreknew He also predestined to be conformed to the image of his Son, in order that He might be the first born among many brothers. And those whom He predestined He also called, and those whom He called He also justified, and those whom He justified He also glorified." In layman's terms, those God decided He would save before they even existed He called with an irresistible calling. After calling them to Himself He justified them through the death of Christ on the cross and soon they will be glorified in Heaven with Him.
Praise God for His Spirit.
Praise God for His calling, justifying, and glorifying.