Jeff Robinson says many people who praise Dr. Martin Lloyd-Jones seem to forget his strengths as an evangelist who prayed earnestly for revival. Pastor Tim Keller says he was wonderful influenced by Lloyd-Jones style of preaching to unbelievers, such as what Robinson describes:

In an age where it sometimes seems that John 3:16 is the earliest verse in the canon that ought to be marshalled for winning lost souls, Lloyd-Jones’s approach to evangelism might seem curious. But [Iain] Murray lists three primary reasons why the Doctor chose to use the Old Testament so often in seeking the conversion of sinners:

1. It reveals sin in its true nature. Murray writes, “Lloyd-Jones believed that the true difference between moralizing preaching on the Old Testament and true evangelistic preaching is that moralizing deals only with sin in terms of symptoms and secondary features. The essence of sin, the true seriousness of sin, can only begin to be understood when it is seen in terms of a wrong relationship and attitude to God himself.”