King James Bible
King James Version (KJV)

From spoude; to use speed, i.e. To make effort, be prompt or earnest -- do (give) diligence, be diligent (forward), endeavour, labour, study.
see GREEK spoude
a. to hasten, make haste: followed by an infinitive (cf. σπεύδω, 1), 2 Timothy 4:9, 21; Titus 3:12 (others refer these examples to b.; but cf. Holtzmann's Commentary on 2 Timothy 2:15).
b. to exert oneself, endeavor, give difference: followed by an infinitive, Galatians 2:10; Ephesians 4:3; 1 Thessalonians 2:17; 2 Timothy 2:15; Hebrews 4:11; 2 Peter 1:10; 2 Peter 3:14; followed by an accusative with an infinitive 2 Peter 1:15.