"Thou wilt keep him in perfect peace, whose mind is stayed on Thee, because he trusteth in Thee" (Isaiah 26:3).
The staying of our minds upon God does not mean that we must consciously and directly think about Him at all times. We could not fulfill our responsibilities in a Christ-glorifying manner if this were the case. We would not, for example, want to enter a tall building designed by a Christian engineer who gives less than full attention to his planning because he attempts to think about God while doing his calculations. "Whatsoever ye do... do all to the glory of God" (I Corinthians 10:31).
Our calling rather involves the taking of those opportunities we do have to prayerfully fix our minds upon the Lord Jesus and His Truth. There are many, and we do well to remember that God gave to us the amazing gift of our brains for the primary reason that we might think of and relate to Him. "Thou shalt love the Lord thy God with all thy... mind" (Matthew 22:37). No other pondering approaches the blessedness we find when considering the Bible's revelation of the being, nature, character, purposes and ways of our Creator and Redeemer.
Such consideration can take place in quiet moments with an open copy of the Scriptures before us. Or we may remember, believe and affirm the Word of God in times of temptation and challenge. Sharing with fellow believers and bearing witness to others also keeps our Lord fresh in our minds. Our prayers also offer much opportunity to think of God, not only in the sense that we are communicating with Him, but doing so in the context of His revealed Biblical truth. Thanksgiving and praise direct our minds Heavenward as we gratefully remember our Lord's wondrous works on our behalf. Viewing the handiwork of God in creation fills our minds with Him because "the invisible things of Him are clearly seen, being understood by the things that are made" (Romans 1:20). And finally, there are times when we bless both the heart of God and our own when we look to Him when we could be looking in many other directions.
"Heavenly Father, in this moment, we will think of You. We will consider what Your Word declares of Your glorious Person and works. We will ponder with awe and much gratitude the grace and mercy You have shown us throughout our lifetime, and in this present hour. We will consider the enormity of the Sacrifice that made such goodness possible. We will remember how often Your face shines through the faces of people, and how We so blessedly hear Your voice in their voices. We will realize anew and afresh that You are with and within us, as the Lord Jesus promised. We will bow our heart and head in the remembrance that an eternity of such blessedness awaits, and we will rejoice in anticipation. Most of all, we will think of Your love, and that You are love. And we will be amazed as we seek to join the Psalmist in his response of devotion and faith...
"I will love Thee, o Lord my strength!"