There are many Christians who make a wonderful beginning. They see the vision of God’s great purpose, and certain words in the New Testament make a great appeal to them, such as: “Called according to his purpose” (Romans 8:28). That is a wonderful vision! “…According to the eternal purpose which he purposed in Christ Jesus our Lord.” (Ephesians 3:11) Such a thought makes a great appeal to these people and they make a heart response. They go on so far, and then many stop too soon. They lose the vision; they lose the inspiration; they lose the sense of purpose; they lose the energy to go on, and of some we have to say: ‘Something has gone out of their faces. What was there with them once is not there now. They were so positive once, so occupied with the heavenly calling, but something has happened.’ These people may not be altogether conscious of it, and they would not tell you that something has happened, but it is quite evident that something has happened. They have just lost something, and you do not get the response now from them that you once got. They are not so interested now as they were. The heavenly vision has gone out of their lives. That is true of many Christians, and it could be true of all of us.
Why did these people stop short of finishing the job? I think that very likely it was because they became weary in well doing. The battle was long drawn out. It was spread over years and was very exhausting. No sooner had they gained one victory than they had to start fighting again. They did not have much rest between one battle and the next one. It was a long drawn-out warfare; they got weary in battle, and in their weariness they lost the vision, they lost heart, and they lost the initiative.
I am so glad that with all the strong things that the New Testament says, it says some very kind and understanding things about this: “Let us not be weary in well-doing; for in due season we shall reap, if we faint not” (Galatians 6:9); “Wherefore, my beloved brethren, … your labour is not vain in the Lord” (1 Corinthians 15:58); “God is not unrighteous to forget your work and labour of love” (Hebrews 6:10). What a lot of things there are like that! And Jesus said to His disciples, who were being brought into the battle: “Let not your heart be troubled!” (John 14:1), while we can hear the Lord’s words to Joshua: “Be strong and of a good courage; be not affrighted, neither be thou dismayed” (Joshua 1:9). Again, the Lord Jesus said to His disciples: “He that endureth to the end, the same shall be saved” (Matthew 24:13).