Often we find ourselves in situations where it is so difficult to understand what God is doing, why He is allowing some particular thing to happen, why it appears that Satan has the upper hand. Her is a bit of sage wisdom from Amy Carmichael which I trust will provide encouragement for any of you in those types of situations:
Some find it hard to believe that Satan (a conquered foe) can interfere in the affairs of a child of God. Yet we read of St. Paul earnestly endeavoring to do something and Satan hindering him [1 Thess 2.18]. The reason for Satan’s power was not prayerlessness. ‘Night and day am I praying with passionate earnestness that I may see your faces’ [1 Thess 3.10 Way]. Satan could not touch his spirit, his heart’s affections, or any other vital thing in him, but he could so order events that the apostle could not do for these children of his love all that he longed to do. He could only write letters. He could not be with them
And in the familiar 2 Cor 12.7, we have a still stranger thing, a messenger from Satan allowed to do bodily hurt, and allowed to continue to hurt, we are not told for how long.
So it is clear that there are activities in the Unseen which are not explained to us. Every now and then the curtain between is drawn aside for a moment, and we see. But it is soon drawn back again.
Only this we know: ‘On the day I called, thou didst answer me, my strength of soul thou didst increase’ [v. 3]. If that be so what does anything matter? Oh, to use all disappointments, delays and trials of faith and patience as St. Paul used his. What golden gain came to our glorious Lord because of these experiences. And see how he closes this letter to the Thessalonians which is so full of human longing: ‘The very God of peace sanctify you wholly: and I pray God your whole spirit and soul and body be preserved blameless unto the coming of our Lord Jesus Christ. Faithful is He that calls you, Who also shall do it’ [1 Thess 5.23,24]. Faithful is He: He will do it.” (AC, Edges, pp. 141-142)