When Paul writes to believers about the coming of the Lord, he is speaking about the Rapture. The Rapture comes before the seven year tribulation the Lord Jesus warned of in Matthew 24:21.
1 Thessalonians 4:15 For this we say unto you by the word of the Lord, that we which are alive and remain unto the coming of the Lord shall not prevent them which are asleep.
2 Thessalonians 2:1-3 Now we beseech you, brethren, by the coming of our Lord Jesus Christ, and by our gathering together unto him, That ye be not soon shaken in mind, or be troubled, neither by spirit, nor by word, nor by letter as from us, as that the day of Christ is at hand. Let no man deceive you by any means: for that day shall not come, except there come a falling away first, and that man of sin be revealed, the son of perdition; …
When James writes to Jews about the coming of the Lord, he is speaking about when the Lord comes at the end of the great tribulation, settles the great war and sets up His Kingdom on earth to rule for 1000 years.
James 5:7-8 Be patient therefore, brethren, unto the coming of the Lord. Behold, the husbandman waiteth for the precious fruit of the earth, and hath long patience for it, until he receive the early and latter rain. Be ye also patient; stablish your hearts: for the coming of the Lord draweth nigh.
Are you ready for the coming of the Lord? The Rapture!
Read 1 Corinthians 15:1-4 and Romans 10:9-13