Familiaris Consortio – Section 84“…
Finally, there are those who have entered into a second union for the sake of the children's upbringing, and who are sometimes subjectively certain in conscience that their previous and irreparably destroyed marriage had never been valid.Together with the Synod, I earnestly call upon pastors and the whole community of the faithful to help the divorced, and with solicitous care to make sure that they do not consider themselves as separated from the Church, for as baptized persons they can, and indeed must, share in her life. They should be encouraged to listen to the word of God, to attend the Sacrifice of the Mass, to persevere in prayer, to contribute to works of charity and to community efforts in favor of justice, to bring up their children in the Christian faith, to cultivate the spirit and practice of penance and thus implore, day by day, God's grace. Let the Church pray for them, encourage them and show herself a merciful mother, and thus sustain them in faith and hope.However, the Church reaffirms her practice, which is based upon Sacred Scripture, of not admitting to Eucharistic Communion divorced persons who have remarried. They are unable to be admitted thereto from the fact that their state and condition of life objectively contradict that union of love between Christ and the Church which is signified and effected by the Eucharist. Besides this, there is another special pastoral reason: if these people were admitted to the Eucharist, the faithful would be led into error and confusion regarding the Church's teaching about the indissolubility of marriage.Reconciliation in the sacrament of Penance which would open the way to the Eucharist, can only be granted to those who, repenting of having broken the sign of the Covenant and of fidelity to Christ, are sincerely ready to undertake a way of life that is no longer in contradiction to the indissolubility of marriage. This means, in practice, that when, for serious reasons, such as for example the children's upbringing, a man and a woman cannot satisfy the obligation to separate, they "take on themselves the duty to live in complete continence, that is, by abstinence from the acts proper to married couples.”Source: http://w2.vatican.va/content/john-paul-ii/en/apost_exhortations/documents/hf_jp-ii_exh_19811122_familiaris-consortio.htmlPhoto: Courtesy of www.catholic.org