Does it say we're saved because we were baptized, joined the church, or did good works?
No. The Scripture does not say salvation is for those who were baptized and joined the church, nor for those who have done good works. It says salvation is by His grace, for those who have believed and trusted in Christ, so that they may be to the praise of His glory.
Les explains that God has paid the price of redemption so believers can be to the praise of His glory in this life, not merely to escape hell or go to heaven. He points out that it does not say to those who were baptized and joined the church, nor to those who have done good works, but to those who have believed and trusted in Christ. He also stresses the sequence: after hearing the word of truth, you trusted. No one is a Christian before hearing the word of truth.
That we should be to the praise of his glory, who first trusted in Christ.