Biblical Universalism is the teaching that all persons are elect in Christ except those who the bible expressly declares willbe finally lost, namely those who ultimately reject or remain indifferent to whatever revelation God has give of himself to them whether in nature/conscience or in gospel presentation.
Biblical Universalism is based upon three biblical facts:
1) The so-called "universalistic" texts speak of a certain-to-be-realized salvation as Calvinists have consistently maintained, and they do so in terms of all persons as Arminians have always affirmed.
2) All persons except Jesus Christ, are liable for and polluted by the imputed sin of Adam (original sin, inherited sin). However, the Scriptures do not teach or imply that anyone is consigned to eternal damnation solely on the basis of their sin in Adam apart from actual, willful and persistent sin on the part of the person so consigned.
3) We must accept the so-called "universalistic" texts as written. We may allow only those exceptions that are necessarily imposed upon these passages from the broader context of the Scriptures as a whole.