Blessed [is] that man who makes the LORD his trust, And does not respect the proud, nor such as turn aside to lies. Psalms 40:4(NKJV)
The blessings of the Lord do not operate like magic where God does or puts something on you and then you walk away from Him and continue in your own lifestyle independent of Him.Though God has already blessed us, we walk in and enjoy those blessings as He continues to instruct and lead us. This is what it means that blessed is the man who makes the Lord his trust. Following the instructions and leading of the Lord is how we trust Him and hence experience the blessings He already poured out upon us.Abraham made the Lord his trust and so walked in the blessing as he followed the God who instructed him to leave his native land and go to a place He led him to.You can also experience the blessedness in making the Lord your trust as you follow His instructions and leading in His written Word.