How do we know that God's mercy is unconditional?

God shows mercy not based on human actions but through His covenant love. The narrative of Mephibosheth confirms this, as he received David's kindness not for anything he had done but for Jonathan's sake. In Romans 9:15, God states, 'I will have mercy on whom I have mercy.' This illustrates that His mercy is a decision made by God, independent of human merit. The call to the King's table, therefore, is an invitation to receive grace and mercy that is solely rooted in Christ’s sacrifice for sinners.