Luke 18:8

Speedily] cp. Revelation 22:20; 2 Peter 3:8. Christ's coming, though it may seem to be long delayed, will be as speedy as the scheme of God's providence, which takes account of the needs of the whole world, will permit. It will not be delayed an instant longer than is necessary.

Nevertheless, etc.] The sense is, 'Nevertheless, in spite of the warning and encouragement I am giving you, the faith of many will have waxed cold at the time of My return.' Christ does not mean that the elect will have lost their faith altogether, but that on account of the trials and disappointments which will precede the Second Advent, and also on account of its unexpected delay, they will be discouraged.

Faith] or, rather, 'the faith,' i.e. the unshaken confidence in the certainty of My Second Coming, which I hope to find.