That God is Almighty or the sovereign Lord over all things, doesn’t mean people are robots. In a way we can’t comprehend, God ordains all things and yet we are responsible for our choices. We cannot blame God for our wrong choices or sins. Put in a positive frame, God fulfills His eternal and pre-determinate will through the choices we make (Phil 2:12-13).
This has been illustrated in that when the saved reach Heaven, we’ll approach a gate over which is written: Whosoever will may come (Mk 8:34); salvation is open to all who come. Turning back to look, over the inside of the gate is John 15:16: You did not choose Me, but I chose you.
Both statements are true. One speaks of man’s willingness, the other of God’s predetermined will. The tension is not in which statement is true, but which came first: God’s choice or yours? God’s grace or your willingness? We are soundly convinced from the whole counsel of God’s Word that the Father’s eternal will to choose out a bride for His Son came before the foundation of the world (Eph 1:4; Tit 1:2; Rev 13:8; 17:8); and yet we are responsible for obeying His will.
By His eternal will, God, working through providence, Ruth made her way into a field of Boaz to glean.

I. Look (Ruth 2:4). Behold indicates suddenness or surprise, and might be translated, Hey! Look at this! Ruth and many others were gleaning, and “surprise”, Boaz appeared at this one field just in time to see Ruth. The arrival of Boaz wasn’t an accident but a divine appointment.

II. Labor (Ruth 2:4). Boaz was introduced in verse one as a man of great wealth and a relative or kinsman of Elimelech. The Hebrew word for kinsman is goel (Ruth 2:20; 3:9, 12; 4:1, 3, 4, 6) and related to our English word redeemer. Boaz, the redeemer, appears and his first recorded words are of grace and blessing, hinting to his character. He was a godly man who brought his faith into his daily life and business.
There was civility and cooperation between management and labor, and his workers replied in a friendly manner. Politics of division and greed drive a wedge between management and labor, but it should never be so among God’s people. God requires Christian employees to be honest and just, hard working, doing their best, and completing their tasks as unto Jesus, the ultimate Judge. Christian employers are required to do nothing less toward their workers (Eph 6:5-9; Col 3:22-4:1; 1 Tim 6:1-2). If people lived by the Word of God, there would be no need for labor laws or strife.
In a time of Jewish apostasy - where people professed God but had no evidence of Him - Boaz was a genuinely godly man. He was one of God’s remnant people. Whereas Judges is a book of man’s failure and infidelity to God, Ruth gives an example of godliness during a time of apostasy.

III. Love (Ruth 2:5-7). Boaz saw working in his field, the young Ruth, indicating a significant age difference between them. He knew she was poor because she was gleaning, but asked aloud to whom she was related or married. He was immediately attracted to her. God had a plan He was bringing to pass
The field boss said Ruth had politely and humbly asked to glean without presumption or entitlement. She willingly accepted what was left behind by the hired hands (Mt 15:21-28) and worked hard, taking only a single break from sunrise.
The supervisor also twice referred to Ruth as a Moabite foreigner or outsider. Moabites were the incestuous descendants of Abraham’s nephew Lot and Lot’s daughter (Gen 19:30-37). The two families became nations with a contentious history during Israel’s wilderness wanderings (Num 22:2-6; Judg 11:17-18; Neh 13:1-2). Moabites were forbidden a place in Israelite society (Deut 23:3-6), yet individual Moabites were certainly saved by God’s grace through faith and accepted into His family of the redeemed.