Bird needs three things to fly

Swami Vivekananda says :

There is not really so much difference between knowledge (Jnana) and love (Bhakti) as people sometimes imagine.

It is not given to all of us to be harmonious in the building up of our characters in this life: yet we know that that character is of the noblest type in which all these three – knowledge and love and Yoga – are harmoniously fused. Three things are necessary for a bird to fly – the two wings and the tail as a rudder for steering. Jnana (Knowledge) is the one wing, Bhakti (Love) is the other, and Yoga is the tail that keeps up the balance. For those who cannot pursue all these three forms of worship together in harmony and take up, therefore, Bhakti alone as their way, it is necessary always to remember that forms and ceremonials, though absolutely necessary for the progressive soul, have no other value than taking us on to that state in which we feel the most intense love to God.

The Jnanis hold Bhakti to be an instrument of liberation, the Bhaktas look upon it both as the instrument and the thing to be attained. To my mind this is a distinction without much difference. In fact, Bhakti, when used as an instrument, really means a lower form of worship, and the higher form becomes inseparable from the lower form of realisation at a later stage. Each seems to lay a great stress upon his own peculiar method of worship, forgetting that with perfect love true knowledge is bound to come even unsought, and that from perfect knowledge true love is inseparable. (III, 32 – 34)