Being on knees in prayer is not a religious posture. Perhaps, it may be with some if done without exercising the spirit in prayer. I have been on my knees all my Christian life whenever I pray, if it was conducive. I have no religious obeisance in being on my knees in prayer, but I definitely experienced the sincerity, genuineness, and seriousness while praying as such, not that my prayers were of lesser degree without such. For any serious matter that I would bring before God I would prefer to do so on my knees. Though I am not obligated to do so, nor that I could not pray without it. It is just my personal preference, if conducive, to be on my knees in prayer.
Of late, I have been led to be on my knees for some serious matters. I had decided that I would relocate my family and the office, and had done all preliminary works. After intensive research on new premises, one night I was strongly led by the Lord to be on my knees and reconsider my decision.
I am a person who does not make decision easily but once I have decided I hardly change. Besides, my house and office owner requested me to continue with his terms of a 10% increase in rental. To me it was logically not acceptable as the premises need urgent attention on maintenance and repair works, and I had other choices too. Despite all these logical reasons, the Lord brought me down to my knees and taught me a lesson of self-denial. Then on my knees, I "amen" the Lord's speaking against all my opinions and preferences. The following day I texted my house owner of my decision to continue in the same premises, and also related the matter to my coordinator and the church brothers.
Right after this decision, a heavy burden weighing me for over a month now was lifted off. All negative feelings within concerning the property and its owner were also subdued. Messages of blessing were exchanged between me and my house owner.
Decisions of self-denial is not easy lesson to learn. Self-pride and self-respect can be dealt with only by the Lord when one has the grace to receive "defeat" in ones's decisive opinion, and is willing to leave the matter entirely in the hand of the Lord. Such experience, at best, can be subjective when one humble himself in prayer on his knees. And in so doing, I believe, I am the blessed one. As far as ego is concerned, I may be the "loser", but in spiritual experience, I am the "winner." So now I am happily continuing in the same premises trusting the Lord to bountifully supply and meet the extra need of 10% increase. In God's School of Economy, when the demand is higher, the supply is even higher.
Another incident was with a brother who I have been caring for and who has been fighting a difficult battle of overcoming his past habit. As I fellowshipped with him to help him out, I strongly felt led by the Lord to bring him to his knees for prayer. On our knees, we prayed together; he confessed his sins and begged the Lord to deliver him completely, in tears. I knelt with him and supported him in prayer too. Then he reconsecrated himself to the Lord afresh. Right after such prayer, deep within me, I was confirmed by the Lord that "its done," the prayer and consecration accepted. I stood and left and did not feel any further need to say anything. Since this experience, my hidden fear concerning him has been eased, I now feel relieved about him and trust the Lord would definitely gain him.
These are just two recent experiences of effective prayer on my knees.