Psalms 120--134 are often called songs of ascent or pilgrim songs. Very likely they were designed to be set to music and sung by the pilgrims as they traveled up to the feast at Jerusalem.
Psalm 121 is a Psalm of faith-keeping and protection. Its theme is that God never fails His own. Many times, when preachers conduct funeral services, they read this Psalm. It comforts when mortal lips cannot suffice. One needs only to lift up his eyes and heart to Him. The Lord never slumbers; He never sleeps; and He keeps us safe and secure by day and night, through troubles and trials, heartaches and toils. When we are in submission to Him, He keeps us from evil and preserves our souls unto the day of the return of our Lord and Saviour, Jesus Christ.
Note especially verses 5 and 6 of Psalm 126, "They that sow in tears shall reap in joy. He that goeth forth and weepeth, bearing precious seed, shall doubtless come again with rejoicing, bringing his sheaves with him." These two verses are, in particular, speaking about witnessing and soul-winning for the Lord. God has told us that we are saved for a definite purpose--to reproduce spiritually. The only way we can do this is to plant the seeds of God's Word in the minds and hearts of those about us. When we are broken-hearted for a lost loved one, and we share with them what God has done for us, the promise of Psalm 126:6 is that we shall doubtless come again with rejoicing, bringing our sheaves with us. What a great promise this is!
