'O God' in the Bible

who, through him, are faithful to God who raised him from the dead and gave him honour, so that your faith and hope are now in God.

and, as living stones, form yourselves into a spiritual House, to be a consecrated Priesthood, for the offering of spiritual sacrifices that will be acceptable to God through Jesus Christ.

For Christ himself died to atone for sins once for all--the good on behalf of the bad--that he might bring you to God; his body being put to death, but his spirit entering upon new Life.

But, if a man suffers as a Christian, do not let him be ashamed of it; let him bring honour to God even though he bears that name.