We have in the text:
I. A precept for the day of trouble. God saith, "Call upon Me." (1) This calling is a suitable recognition of Himself in His relation to us. Is He not our Father? And as our Father, is He not our Deliverer? (2) This calling is an act of homage to His delivering power. It recognises God's hand. (3) This calling brings us near to God, face to face with God. (4) This calling is a beneficial religious exercise. It comforts. It lessens pressure. (5) This calling is the best possible preparation for the deliverance. It promises humility, humbleness of mind.
II. God encourages us to obey this precept by the promise and assurance, "I will deliver thee, and thou shalt glorify Me." Thus does God speak to us now: (1) By verbal revelations of His character He saith, "Call upon Me" (Genesis 17:1); (2) by exceeding great and precious promises (Isaiah 43:2); (3) by various precepts and exhortations (Isaiah 43:1); (4) by the history of the deliverances He has wrought (Psalms 44:1-4); (5) by our experience and observation of deliverances effected (Psalms 34:5-6); (6) by the mediation of His Son He saith, "Call upon Me" (Hebrews 12:24); (7) by the ministry of the Holy Ghost He saith, "Call upon Me" (Romans 8:26).
S. Martin, Comfort in Trouble,p. 12.
References: Psalms 50:15. T. Kelly, Pulpit Trees,p. 300; Congregationalist,vol. vi., p. 461; Spurgeon, Sermons,vol. xxv., No. 1505, and vol. xxxi., No. 1876; G. S. Barrett, Old Testament Outlines,p. 114.