How do we know God only accepts us through Christ?

God's acceptance of humanity is founded solely on Christ's righteousness. Romans 10:4 confirms, 'For Christ is the end of the law for righteousness to everyone who believes.' This passage indicates that any attempt to seek acceptance through our merits or adherence to the law is futile and ultimately leads to condemnation, as highlighted in Galatians 5:4. Instead, true acceptance comes from God's grace in Christ, our representative, who fulfills the law's demands on our behalf. This means that our faith in Christ is the evidence of our acceptance, aligning with the historic Reformed teaching that salvation is by grace alone through faith alone.