Matt poole says of 1 Pet 3:18
That he might bring us to God;
i.e. reconcile us to God, and procure for us access to him with freedom and boldness,
Romans 5:2 Ephesians 3:12.
John Gill
that he might bring us to God; nigh to God, who, with respect to communion, were afar off from him
; and in peace and reconciliation with him, who were enemies to him by wicked works; and that they might have freedom of access, with boldness, unto God, through his precious blood, and the vail of his flesh; and that he might offer them unto God, as the Vulgate Latin and Syriac versions render it; as a sacrifice acceptable unto God, presenting them to him unblamable and unreproveable in his sight; that he might bring them into his grace and presence here, and, as the great Captain of their salvation, bring them to him in glory hereafter: