His Life Path (5+10+1+9+5+1) = 31/ 4.
In Numerology 31/ 4 represents the spiritual warrior who has a relentless determination to act for others. The 1 in this position can represent great will power to initiate building something solid (4), using the power of creativity and communication (30).
The day and month represent the forming of his personality and the 51/ 6 that emerges here, represents ‘the ‘sword of truth’ encouraging Bob to build on his truth.