What does it mean to be grafted into the olive tree?

The metaphor of grafting into the olive tree represents the inclusion of Gentiles into God's covenant people, as explained in Romans 11:17. In this passage, Paul describes believing Gentiles as wild olive branches being grafted into the cultivated olive tree, symbolizing the church's unity in Christ. This grafting illustrates the supernatural grace of God, which enables believers to partake in the rich spiritual nourishment and heritage that is found in Christ and His covenant. It signifies not just a positional change but an ongoing relationship where believers receive life and sustenance from the roots of faith. Thus, to be grafted in is a profound expression of God's kindness and mercy toward those who were previously outside His promises.