“Nothing can take off a minister of the gospel from seeking the conversion and salvation of souls. We cannot plead anything to exempt us from this work. To plead that the people’s hearts are hard, and that the work is difficult and full of danger, will not serve the turn. No; ‘Their blood will I require at thy hands.’ Therefore, all excuses set aside, we must address ourselves to our work. Acts xx. 23, 24: Paul went bound in the spirit, and the Holy Ghost had told him that in every city bonds and afflictions did abide and wait for him; but, saith he, ‘None of these things move me, neither count I my life dear to myself, so as I may finish my course with joy, and the ministry which I have received of my Lord Jesus, to testify the gospel of the grace of God.’ He was willing and ready to endure what should befall him at Jerusalem, and reckoned nothing of it, nor of loss of life, if he might successfully preach the gospel, and serve Christ faithfully in the office of the ministry. If nothing be an excuse to us, can anything be an excuse to you? Should your souls be nearer and dearer to us than to yourselves?”
– Thomas Manton, from a sermon entitled No Excuse Against A Speedy Obeying Christ’s Call; volume 2 of Works, page 126
And I would add that in light of the Great Commission, there is not one Christian who is exempt from being concerned with the conversion of the lost seeing in it that we have all been called to be witnesses of Jesus Christ to proclaim the Gospel. So, no excuses!