The aim of this paper is to establish a series of links between some of the main religious formulas that arise in Judaism and Christianism and the romantic and confluent love characteristic of modern societies. To carry it out, firstly, we analyze love in historical Judaism, reflecting on the Ahavah formula, the predominant formula in this religious context. Secondly, to study the Christian drift of love, we first analyze how the emergence of this new religious faith (Christianism) provokes a change in the Jewish way of understanding it (love). Subsequently, we analyze some of the three main formulas in which love materializes in Christianism: Agape, Caritas, and Amor Sui. Regarding modern love, we first carry out a contextualization focused on the processes of secularization and individualization, and their impact on it. Afterwards, we present the main features that define both romantic and confluent love, and finally, we analyze the Judeo-Christian characters inherited for such types of love. The methodology used focused on a literature review and theoretical reflection based on this review. The research carried out allows us to establish sociological continuities between Judeo-Christian religious love and modern secular love in the terms used throughout the paper.