In the Bible, "diligence" refers to "haste," (being quick to act), "earnest care," being eager and desirous of acheiving a goal or result. Thus, we are to "study" (give diligence) to show ourselves approved unto God (2 Tim 2:15). Giving all diligence, we are to add to our faith virtue, knowledge, temperance, patience, godliness, brotherly kindness, and love ( 2 Pet 1:5-7). Christians must "give diligence to make (their) calling and election sure" (2 Pet 1:10).
"Cursed be the one who does the Lord's work negligently" ---that is, without diligence (Jer 48:10)! "Thou hast commanded us to keep thy percepts diligently" (Psa 119:4). Of Hezekiah it was said, "And in every work that he began in the service of God, and in the law, and in the commandments to seek God, he did it with all his heart, and prospered" (2 Chron 31:21). The Lord rewards those "who diligently seek him" (Heb 11:6). Therefore, "whatsoever ye do, do it heartily as to the Lord, and not unto men" (Col 3:23)
We earnestly endeavor to attain educational and career goals. We "give diligence" to succeed in athletics. Such diligence in the affairs of life is to be admired, commended, and imitated, for "he becometh poor that dealeth with a slack hand, but the hand of the diligent maketh rich" (Prov 10:4). How many of us, though, display diligence in spiritual matters? Are we as eager to be on time at worship as we are to work or school? Are we as earnestly determined to develop ourselves in the grace and knowledge of the Lord as we are in the classroom or on the job?
One can aimlessly wander into hell with a lackadaisical attitude, but he cannot go to heaven without "giving all diligence" (Heb 11:6; 2 Pet 1: 5-10).
Which way are you headed?