In Psalm 135:19, the psalmist encourages the people of Israel and the house of Aaron to offer blessings to the LORD. The verse reads, "Bless the LORD, O house of Israel: bless the LORD, O house of Aaron:" (KJV). This short yet profound exhortation beckons us to an intimate relationship with God—a relationship that is expressed through worship and praise.

### The Context of Blessing

To fully grasp the significance of this call to bless the LORD, we must first understand the context within which it was written. Psalms 135 sits in the post-exilic period, a time when the people of Israel were re-establishing their identity as God’s chosen nation. After returning from Babylonian captivity, they were tasked with renewing their commitment to Yahweh, the covenant keeping God. In light of their past disobedience, the psalmist aligns his readers back to a posture of worship and gratitude.

Both the house of Israel and the house of Aaron represent different facets of worshippers—Israel signifies the collective, while Aaron refers to the priestly lineage, those entrusted with leading worship and guiding the community in their relationship with God. By calling both to bless the Lord, the psalmist points out that worship is a communal affair; it involves everyone, irrespective of their role or status.

### Understanding ‘To Bless’

The term "bless" in this context can be understood as both an action and an attitude. To bless the LORD means to acknowledge His greatness and to speak well of Him, recognizing His goodness, His faithfulness, and His sovereignty. It’s an act of gratitude that flows from a heart that truly knows and has experienced God.

Moreover, when we bless the LORD, we are not doing so out of obligation, but as a response to His love and grace. We have much to thank God for—His mercies that are new every morning, the gift of life, the beauty of creation, and most importantly, the gift of Jesus Christ, which offers us redemption and reconciliation with the Father.

### Our Commitment to Worship

As modern Christians, we are also part of God’s household. The New Testament reminds us that we are "a chosen generation, a royal priesthood, an holy nation" (1 Peter 2:9). While the house of Aaron was the designated priesthood in the Old Testament, we now carry the responsibility of priesthood in spiritual terms. Thus, the call to bless the LORD extends to us as well.

Our worship should not be confined to Sunday services or special occasions; it should be a continuous act of telling God how worthy He is. When we wake up in the morning, when we see the sun setting, or when we witness the awe of a child’s laughter, these moments beckon us to respond in praise. Each opportunity becomes a chance to reflect His glory to the world around us.

### Practical Steps to Blessing the LORD

1. **Daily Praise**: Set aside time daily to remind yourself of God’s goodness in your life. Start with something as simple as writing down three things you are grateful for each day.

2. **Communal Worship**: Engage in worship with your church family. There is something powerful when we gather to bless the Lord together— we create a space where God’s presence can dwell among us.

3. **Acts of Kindness**: Reflect God’s love through acts of service. When we love others, we are essentially declaring God’s goodness to them, blessing Him through our actions.

In conclusion, Psalm 135:19 invites us to a dual responsibility: to bless the LORD personally and as part of a community. Let us heed this ancient call to worship and take every opportunity to bless the Lord with our words, our actions, and our lives. Through our worship, we both recognize and proclaim His goodness, allowing His light to shine in a world that so desperately needs, His grace.