Jacob Chapter 6

6:2-3 - "...And how blessed are they who have labored diligently in his vineyard..."
If we want to receive joy and fulfill our glory while aiding in His glory, we must labor diligently to help others come unto Christ.  Not easy, but definitely worth it.

6:5 - "...Wherefore, my beloved brethren, I beseech of you in words of soberness that ye would repent, and come with full purpose of heart, and cleave unto God as he cleaveth unto you..."
Jacob is fulfilling his glory (being an instrument in the hands of God to bring some souls to repentance - Alma 29:9) by exhorting us to fulfill our work (keeping the commandments through repentance and coming unto Christ - D&C 11:20).
We do our part by choosing God, and, in turn, we become chosen.  We must cleave unto God as he cleaveth unto us.

6:8 - "...will ye reject the words of the prophets; and will ye...deny the good word of Christ...and the gift of the Holy Ghost, and quench the Holy Spirit..."
Elder Keith K. Hilbig talked about this in the November 2007 Ensign, pg. 37-39 - we either quench or invite the Spirit based on the choices we make.  Where are our priorities?
"1. Do I spend more time with sports than Church attendance or callings?
2. If I have a free day, do I choose to attend the temple or to visit the mall?
3. Do I resort to computer games or surfing the Internet rather than offering meaningful service to others in my home and community?
4. Do I read the newspaper religiously but find it difficult to read the scriptures daily?"
These and other questions help us determine our priorities in life, and can help us realize what we need to do in order to improve our choices.

6:11 - "...repent ye, and enter in at the strait gate, and continue in the way which is narrow, until ye shall obtain eternal life..."
This is a great blessing of acting in faith.  Eternal life is awesome!  As we act in faith, we will prepare ourselves in the necessary way to gain eternal life, with the help of the Godhead.  They make it possible to us through grace.