God has never been in combat with evil. Because of sin in our natures, we are the ones in combat with evil. God is all-powerful and has never had to grapple with evil.
Jesus' anguish on Golgotha was not against the Evil One, but the result of bearing our sin and receiving God's judgement for our sin. Jesus conquered our sin and brought us complete salvation (Col. 2:11-12), complete forgiveness (Col. 2:13-14) and complete victory over supernatural evil forces (Col. 2:15).
There was no battle and no resistance. Jesus laid down His life willingly (John 10:17-18).
Jesus became our King when He was placed on the cross. The early church fathers actually had “The Lord hath reigned from the tree” in Psa. 96:10 (https://biblehub.com/commentaries/psalms/96-10.htm accessed 28.5.2021). As the sign over Jesus’ cross declared, “This is Jesus the King of the Jews”.
Our King will return. The battle against the Evil One is in the near future when “the Lord Jesus will slay him with the breath of his mouth and destroy him by the splendour of his coming “(2 Thess. 2:8 NLT). Jesus is currently sitting at God’s right hand waiting to return to make His enemies His footstool (Acts 2:34-35).
A graphic depiction of the destruction of evil is given prophetically in Ezekiel 39. All the enemies of God assemble to fight against Him and God will rain fire on them so that the army of the Evil One will be completely obliterated without any of his weapons ever having been used. It says that God “will knock the bow from your left hand and the arrows from your right hand, and will leave you helpless” (Eze. 39:3 NLT).
That day is near. “The day of the LORD is an awesome, terrible thing. Who can possibly survive?” (Joel 2:11 NLT). Many other scriptures indicate that the time frame is very soon. Make sure that you are on the right side and ready waiting for the King!