Galatians 6:2 encourages believers to bear one another's burdens, fulfilling the law of Christ, which is rooted in Jesus' commandment to love one another as He has loved us in John 13:34.
Galatians 6:7 warns that God is not mocked and whatever one sows, that will he also reap, paralleling 2 Corinthians 9:6 which speaks of sowing and reaping in the context of generosity.
Galatians 6:8 contrasts sowing to the flesh with sowing to the Spirit, leading to corruption or eternal life, respectively, which is echoed in Romans 8:13 where living according to the flesh leads to death, but by the Spirit leads to life.
Galatians 6:9 encourages believers not to grow weary in doing good, for in due season we will reap if we do not give up, similar to 1 Corinthians 15:58 which exhorts believers to be steadfast and always abounding in the work of the Lord.
Galatians 6:14 speaks of boasting only in the cross of our Lord Jesus Christ, which is similar to Philippians 3:7-8 where Paul considers everything as loss compared to the surpassing worth of knowing Christ.
Thematic focusBoasting in Christ, Cross of Christ.