How do we know we are secure in God's love?

Romans 8:31-32 assures believers of their eternal security, emphasizing that if God is for us, nothing can be against us. The argument here is from the greater to the lesser: if God did not spare His own Son, who suffered and died for our sins, how shall He not also provide us all things necessary for our salvation? This includes not only justification but the transformative work of the Holy Spirit in our lives, ensuring that we are kept secure in His love. This doctrine of preservation is central to sovereign grace theology, where God sovereignly maintains the salvation of His people, pointing to the irrefutable nature of His promises.