The teaching set forth in Matthew chapters 24 and 25 is commonly identified as the Olivet Discourse and contains a detailed explanation of the end-times.
This life offers only a window of time to work for the Lord. Youth and old age both offer their own hindrances to service. In many ways, though not entirely, youth should be spent in learning, middle age in doing, and old age in teaching. Many of the greatest servants of the Lord found in scripture began their journey in youth by learning of the Lord and His ways (1 Kings 18:12; Psalm 71:5; 2 Chronicles 34:3; Job 29:4; Ecclesiastes 12:1). As they approached the prime of life, they put their learning to use by serving the Lord (Numbers 8:24-25). As they passed their prime, they would pass their knowledge on to the next generation in hopes the work of God would go on (2 Timothy 4:1-8).
Some of the modern Jews deny there is any mention made of Angels, in Psalm 104:4, affirming, that the subject the Psalmist treats of, are the Winds, with thunder and lightning, which God employs as his messengers and ministers, to do his will and pleasure. But that the Psalmist means the Angels, is evident from the design and scope of the words.
Faith is that unfaltering confidence in the promises of God that makes a man give more, go further, work harder and hold on longer than he would have for any other reason. What is your faith doing in your own life?
