Many books have been written on the subject (including counter views), but here’s a quick overview.

Many Christians are wary of participating in social justice because of a deep-rooted fear of being labeled “liberal,” “progressive,” or “secular.” They don’t want to be associated with “secular” movements, and are uncomfortable delving into issues that go beyond their cultural comfort zones.

Renowned missiologist, the late David Bosch, wrote “Evangelism cannot be divorced from the preaching and practicing of justice. This is the flaw in the view according to which evangelism is given absolute priority over social involvement, or where evangelism is separated from justice, even if it is maintained that, together with social justice, it constitutes “mission.”
(David J. Bosch, Transforming Mission: Paradigm Shifts in Theology of Mission)

The Gospels show the breadth of Jesus’ love, even to the point of dying on the cross. Jesus went out of his way to intentionally help specific groups of people – the alienated, mistreated, the sick and cast aside, and those facing injustice. Being part of a movement seeking justice, positive reform, and empowerment is one of the most Christ-like things we can do.

We live in a world filled with numerous groups and communities facing systemic oppression, and we must act. We must be willing to admit and address the complex realities within our world that create such problems.

Jesus intentionally, purposefully, and passionately addressed very specific causes and helped those who were being abused, violated and oppressed and challenged the status quo. Serving those who need justice is an example of following Jesus because throughout the world there are millions of people who are suffering.

“If rich Christians today would only practice solidarity with poor Christians – let alone the billions of poor people who are not Christians – this in itself would be a powerful missionary testimony and a modern-day fulfilment of Jesus’ sermon in Nazareth.”
(David J. Bosch, Transforming Mission: Paradigm Shifts in Theology of Mission)

Participating in social justice is a Christian tradition inspired by Jesus. It’s a deeply spiritual practice. We should be active participants for the sake of following Jesus – for the purpose of glorifying God through acts of justice, empowerment, and love.

(adapted from an article by Stephen Mattson, author of the forthcoming (Oct 2021) social justice devotional On Love and Mercy: A Social Justice Devotional)