The Divine And Demoniac Natures 17. The Divisions of Faith 18. And of all yogis, he who always abides in Me with great faith, worshiping Me in transcendental loving service, is most intimately united with Me in yoga and is the highest of all. The word bhajate is significant here. Bhajate has its root in the verb bhaj, which is used when there is need of service.
Worship means to adore, or to show respect and honor to the worthy one.
But service with love and faith is especially meant for the Supreme Personality of Godhead. One can avoid worshiping a respectable man or a demigod and may be called discourteous, but one cannot avoid serving the Supreme Lord without being thoroughly condemned. Every living entity is part and parcel of the Supreme Personality of Godhead, and thus every living entity is intended to serve the Supreme Lord by his own constitution. Failing to do this, he falls down. In this verse also the word bhajanti is used.