10 During the present difficulties, We place much trust in the prayers of innocent children for whom the Divine Redeemer cherishes a special love. Particularly during Christmas time, let them raise to Him their limpid voices and tiny hands, tokens of interior innocence, in united prayer, imploring peace, harmony and mutual charity. To their fervent prayers, We desire them to add the works of Christian piety and those gifts of Christian generosity which may placate the Divine Justice offended by so many crimes, and, as their means allow, bring relief to the needy.
Source: Optatissima Pax (Vatican.va)