The word of truth is the good news about Jesus (1:21–23; 1 Peter 1:23–25).
give us birth: The image of a mother giving birth shows the full extent of God’s parental love for his children (compare Luke 13:34; John 1:13; 3:3–8; 1 Peter 1:23).
a kind of firstfruits (compare Exodus 23:16; Leviticus 23:9–14; 1 Corinthians 15:20; Colossians 1:18): Christians are examples of the ultimate restoration of all creation (Romans 8:20–22).