My foot standeth in an even place - The word rendered “even place” - מישׁור mı̂yshôr - means properly “righteousness,” or “justice;” then, “evenness, a level region, a plain:” Isaiah 40:4; Isaiah 42:16. DeWette renders it, “in a right path.” The idea is, either that he was standing now on smooth and level ground; or that he was walking in a straight path, in contradistinction from the crooked and perverse ways of the wicked; that is, he had found now a level road where he might walk securely. The latter is probably the true meaning. He had been anxious about his condition. He had been examining the evidences of his piety. He had had doubts and fears. He had seen much to apprehend, and he had appealed to God to determine the question on which he was so anxious - whether his hope was built on a solid foundation. His path in these inquiries, and while his mind was thus troubled, was like a journey over a rough and dangerous road - a road of hills and valleys - of rocks and ravines. Now he had found a smooth and safe path. The way was level. He felt secure; and he walked calmly and safely along, as a traveler does who has past over dangerous passes and who feels that he is on level ground. The idea is, that his doubts had been dissipated, and he now felt that his evidences of piety were well founded, and that he was truly a child of God.
In the congregations will I bless the Lord - In the assemblies of his people will I praise him. Compare Psalms 22:22. The meaning is, that in the great assembly he would offer special praise that God had resolved his doubts, and had given him so clear evidence that he was truly his friend. He would go to the house of God, and there render to Him public praise that he had been able to find the evidence which he desired. No act could be more appropriate than such an act of praise, for there is nothing for which we should render more hearty thanks than for any evidence that we are truly the friends of God, and have a well-founded hope of heaven. The whole psalm should lead us carefully to examine the evidences of our piety; to bring before God all that we rely on as proof that we are His friends; and to pray that He will enable us to examine it aright; and, when the result is, as it was in the case of the psalmist - when we can feel that we have reached a level place and found a smooth path, then we should go, as he did, and offer hearty thanks to God that we have reason to believe we are His children and are heirs of salvation.